??? 情景例句
You can sit down now.
現(xiàn)在你可以坐下了。
A friend is never known till a man have need.
不到患難時，永遠(yuǎn)不能認(rèn)識真正的朋友。
Fortunately, nothing was found and five hours later we were able to take off again.
幸運的是，什么也沒有找到。5個小時后，我們又起飛了。