That example I gave last time with the bicycle pump was not quite the right example.
上次我举打气筒的例子不太正确。
Can you lend me your bicycle pump?
能把你的打气筒借给我吗？
Dan: I want to buy a new bicycle pump.
阿丹：我想要买一个新的脚踏车打气筒。
Another team developed a mobile bicycle pump in Ghana to help farmers get water for irrigation.
还有一个小组在加纳开发了一种移动脚踏泵，农民可以此获得用于灌溉的水。
She blow up the flat tyre with a bicycle pump.
她用自行车打气筒给瘪了的轮胎打气。
Yvette laughed. "Maybe she uses a bicycle pump, " she said.
伊韦特笑了，“也许用自行车打气筒打气来着。”
You do it so quickly that the heat flow between the inside of the bicycle pump and the outside is too slow compared to the speed at which you compress.
我们用力很大，于是压缩得很快，打气筒内外热传递的速度，与之相比要慢得多。
You do it so quickly that the heat flow between the inside of the bicycle pump and the outside is too slow compared to the speed at which you compress.
我们用力很大，于是压缩得很快，打气筒内外热传递的速度，与之相比要慢得多。
应用推荐