我保證。

I promise.

You can't tell anyone. (你不能告訴任何人。)

I promise I won't. (知道，我保證。)

我不能保證。

I can't promise. *“不能保證，但可以試試”。表達(dá)想幫助對方的心情。

You have to come. (你也來吧!)

I'll try but I can't promise. (我爭取去，但不能保證。)

一定。

Will do.

Remember to bring the report. (記住帶上你的報告。)

Will do. (一定帶來。)

我發(fā)誓。

I swear. *語氣強(qiáng)烈。

Are you sure? (是真的嗎?)

I swear. (我發(fā)誓。)

請相信我。

Trust me.

I'm not sure. (我沒有把握。)

Trust me. (請相信我。)

Believe me.

I know what I'm doing.

You can trust me.

Trust in me.

說到就得做到。

A promise is a promise!

I'm sorry I can't help you. (對不起，我?guī)筒涣四恪?

You said you would. A promise is a promise! (你說過你可以，說到就得做到。)

You promised! (你不是答應(yīng)我了嗎!)

You can't go back on your promise now! (你現(xiàn)在不能食言。)