So, I'm not going to waste your time by asking what happens if you put it in.

我不会问你们把式子带进去以后怎么算,这完全是浪费时间

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The last one that we saw was a complete waste of time.

我们看的上一部这种电影完全是浪费时间。

There is no 实战 - SpeakingMax英语口语达人

I can't help thinking this is a complete waste of time.

我忍不住在想，这完全是在浪费时间。

I can't help but 实战 - SpeakingMax英语口语达人