ph.

1. He talked at length about his work.
他详细地谈了他的工作。

2. At length, we began to understand what she wanted.
最后，我们总算弄清楚她到底要什么。

1. 最终,终于：at last 终于 | at length 最终,终于 | at most 至多,不超过

2. 终于,最后;详细地：at least / / 至少,最低限度 | at length / / 终于,最后;详细地 | at no time / / 从不,决不

3. 最后,终于：take leave of 向...告别 | at length 最后,终于 | go to great lengths 竭尽全力

4. 最终,详细地：at least至少 | at length 最终,详细地; | at most最多

adv

1. in a lengthy or prolix manner

e.g. the argument went on lengthily
she talked at length about the problem

Synonym: lengthily