1. variation [?ve?ri?e??n]
n.变化，变动；变体，变种；变奏(曲)
a change in amount or level
参考例句：
1. The prices for food are subject to variation. 食品的价格可能变更。
2. The regulation allows of no variation. 这规则不得改变。
2. shed [?ed]
n.车棚，小屋，脱落之物，分水岭；vt.使流出，放射，脱落，散发，摆脱；vi. 流出
a small building , usually made of wood , used for storing things
参考例句：
1. There are a lot of straws in the shed. 棚子里有许多稻草。
2. His nose told him that he was getting near the cow shed. 他的嗅觉告诉他，他正走近牛棚
3. ditch [d?t?]
n.沟，沟渠，渠道
a long narrow open hole dug into the ground usually at the side of a road or field , which is used especially for supplying or removing water , or for dividing land
参考例句：
1. With the blind leading the blind, both shall fall into the ditch. 如果瞎子替瞎子带路的话，那么两方肯定会掉到沟里。
2. The water in the ditch is not very clean. 沟里的水不是很干净。
4. gasoline [?g?s?li:n]
n.(美)汽油
formal for gas noun
参考例句：
1. This car runs 5 miles on a gallon of gasoline. 这部汽车一加仑汽油可以行驶五英里。
2. There is still some gasoline left in the tank. 油箱里还剩下一些汽油。
5. dose [d??s]
n.(药的)剂量，一服；vt.给(药)；(给…)服药；vi.服药
a measured amount of something such as medicine
参考例句：
1. In the accident, the workers received a heavy dose of radiation. 在那次事故中，工人受到大剂量的辐射。
2. He gave me a dose of medicine for my cold. 他给我开了一剂治感冒的药。
6. banquet [?b??kw?t]
n.宴会，盛会，酒席
a large formal meal for many people , often followed by speeches in honour of someone
参考例句：
1. We had a banquet, which ended up with soup. 我们举行了一个宴会，最后一道菜是汤。
2. He is in the person of his father for the banquet. 他以他父亲的名义赴宴。
7. namely [?ne?mli]
adv.即，也就是
used when you want to give more detail or be more exact about something you have just said
参考例句：
1. Only one boy was absent, namely Harry. 只有一个孩子缺席，就是哈利。
2. Only one person can answer the question namely you. 只有一个人能回答这个问题，那就是你。
8. vision [?v??n]
n.视觉，先见之明，光景，视力，眼力，幻想，影像；vt.幻想
an idea or mental image of something
参考例句：
1. The wall cuts across our line of vision. 那面墙挡住了我们的视线。
2. Much reading has impaired his vision. 大量读书损害了他的视力。
9. withstand [w?e?st?nd]
vt.经受，承受，抵住
to bear or not be changed by something, or to oppose a person or thing successfully
参考例句：
1. The walls can withstand high winds. 这些墙能顶得住强风。
2. This dress material will withstand repeated washings. 这种衣料能经得住反复洗涤。
10. experimental [?k?sper??mentl]
adj.实验的，用作实验的，根据实验的
relating to tests , especially scientific ones
参考例句：
1. This trip will be only experimental. 这次旅行只是试验性的。
2. The experimental farm is near the waterpower station. 实验农场靠近水电站。
11. resort [r??z?:t]
n.凭借，手段，常去之地，胜地；vi.求助，诉诸，采取（某种手段等），常去
a place where many people go for rest , sport or another stated purpose
参考例句：
1. He couldn't have passed the exam without resort to cheating. 他要不是靠作弊是通不过这次考试的。
2. Beidaihe is noted for its summer resort. 北戴河以避暑胜地而著称。
12. stuff [st?f]
n.原料，材料，东西；vt.填满；吃饱
used to refer to a substance or a group of things or ideas , etc ., often with a description of their general type or quality or saying who they belong to, without saying exactly what they are
参考例句：
1. We could supply you with the stuff in the raw tomorrow. 明天我们可以供应你原材料。
2. He is not the stuff. 他不是这个材料。
13. dump [d?mp]
n.垃圾场；vt.倾卸，切断电源，倾倒；vi.倒垃圾；突然跌倒或落下；卸货；转嫁（责任等）
to put down or drop something in a careless way
参考例句：
1. Where can I dump this rubbish? 我将这些垃圾倒在什么地方？
2. They wheeled the rubbish out to the dump. 他们把垃圾用车运到垃圾场去。
14. destruction [d??str?k?n]
n.破坏，毁灭，消灭
when something is destroyed
参考例句：
1. The enemy bombs caused widespread destruction. 敌人的炸弹造成大面积的破坏。
2. Overconfidence was his destruction. 自负是他垮台的原因。
15. cooperate [k??'?p?re?t]
vi.合作，协作，相配合
to act or work together for a particular purpose , or to be helpful by doing what someone asks you to do
参考例句：
1. We hope we can cooperate even more closely in the future. 希望我们今后能更加密切地合作。
2. I hope you can cooperate on this matter. 我希望你在这件事上能给予合作。
16. utter [??t?(r)]
vt.发出(声音)，说；adj.完全的，绝对的
to say something or to make a sound with your voice
参考例句：
1. He smacked his lips but did not utter a word. 他吧嗒两下嘴，但一句话也没说。
2. I was at an utter loss what to do. 我完全不知道该怎样做才好。
17. secondary [?sek?ndri]
adj.中级的，中等的，次要的；n.次要位置，副手
relating to the education of children approximately between the ages of 11 and 18 years old
参考例句：
1. It's a question of secondary importance. 这是个次要的问题。
2. Secondary school means junior school and high school. 中学是指初中和高中。
18. repetition [?rep??t??n]
n.重复；反复
when you do or say something again
参考例句：
1. The perfomance improved with each repetition. 演出每演一场都有改进。
2. This degree of repetition is not found in any known language. 这种重复程度在任何已知语言中都不曾出现。
19. verify [?ver?fa?]
vt.核实，查对；证明，证实
to prove that something exists or is true , or to make certain that something is correct
参考例句：
1. Men were sent out to verify whether it was true. 几个人被派去查清事实。
2. We will verify this with a copy of payment schedule. 我们将按付款程序的副本进行核实。
20. fulfil [ful?fil]
vt.履行(诺言、责任等)；完成；达到
to do something that is expected , hoped for or promised or to cause it to happen
参考例句：
1. The government should fulfil its pledge. 政府应该履行其诺言。
2. This company should be able to fulfil our requirements. 这家公司应该能够满足我们的要求。