I don "t know how long it" ll take before the management talks to him about it.

我不知道还要过多长时间经理就会找他谈这件事。

youdao

I haven 't been to a cinema for I don' t know how long.

我都记不清楚究竟有多久没看过电影了。

youdao

I broke into tears and threw myself into his arms. I don 't know how long I sobbed, but after a while I became aware that he was crying too.

我泪如泉涌，扑入爸爸的怀抱，我不知道哭了多久，但过了片刻，我发现他也哭了。

youdao

I broke into tears and threw myself into his arms. I don 't know how long I sobbed, but after a while I became aware that he was crying too.

我泪如泉涌，扑入爸爸的怀抱，我不知道哭了多久，但过了片刻，我发现他也哭了。

youdao