您要查找的是不是:
- It's too hot to concentrate on book. 热得不能集中心思看书。
- I must concentrate my energies on decorating today. 我今天必须集中精力搞装饰。
- I can't concentrate on my work when I'm tired. 我累了就无法集中精力工作。
- Don't put me off when I'm trying to concentrate. 我正要集中注意力呢,别打搅我。
- A tyre expands when you pump air into it. 轮胎一打气就鼓起来。
- We must concentrate our attention on efficiency. 我们必须把注意力集中在效率上。
- She couldn't concentrate on a book very long. 她不能长时间专心读一本书。
- Lashing velocity of pump is concerned with nature of air. 泵的抽气速率与气体的性质有关。
- I must concentrate upon my work now. 我现在必须集中精力工作。
- This tire is flat; you didn't pump enough air in. 这个轮胎没气了;你并没打足气。
- We have a pump for drawing water from the well. 我们用一个水泵从井里抽水。
- The heart is analogous to a pump. 心脏和水泵有相似之处。
- Can you lend me your bicycle pump? 能把你的打气筒借给我吗?
- Birds concentrate (in places) where food is abundant. 鸟聚集在食物丰盛的地方。
- Here is an old-fashioned pump for drawing water from a well. 这里有一个旧式水泵可从井里抽水。
- She felt ill. She went to work, however, and tried to concentrate. 她病了。然而她照旧去上班,并且尽力集中精神工作。
- We must concentrate our efforts on improving education. 我们必须致力於改进教育工作。
- You will need to pump hard for several minutes to fill the tank. 你需用泵著实抽吸几分钟,才能把油箱灌满。
- Can you lend me a pump to blow up my bicycle tyres? 你能借给我个打气筒给车胎打打气吗?
- I can't concentrate with you breathing down my neck. 你这样紧紧盯著我,使我精神无法集中。