I think we've exhausted that particular topic.

　　我認(rèn)為我們已把那個(gè)題目討論透徹了。

　　I find her exhausting ─ she never stops talking.

　　我發(fā)現(xiàn)她真累人——她總是不停地說(shuō)話。

　　Even a short walk exhausted her.

　　即使走一段短路，她也疲憊不堪。

　　The health of our children is being endangered by exhaust fumes.

　　我們孩子們的健康正受到排放出的廢氣的損害。

　　There's no need to exhaust yourself clearing up ─ we'll do it.

　　你不必筋疲力盡地收拾——我們會(huì)做的。