n. 底部;末端;臀部;尽头;
adj. 底部的;
vt. 装底;测量深浅;查明真相;
vi. 到达底部;建立基础;
🗣️ 情景例句
I know. I do.
我知道。我会的。
I'm working on it.
我正在努力。
Even a telescope in orbit round the earth, like the very successful Hubble telescope, would not be suitable because of the dust particles iron solar system.