vt.& vi. 咳嗽;(引擎等)发噗噗声;咳出;
n. 咳,咳嗽;咳嗽病;(机关枪等的)连续发射声;
🗣️ 情景例句
It needs your time, and it needs your energy.
它需要你的时间 需要你的精力。
The walls are three inches thick.
这墙3英寸厚。
The currents of air that the walls of the ship direct upwards, as well as in the line of its course, are enough to give the great bird with its immense wings sufficient sustenance and progress.