Now, if they leave, I will be very disappointed.

如果它离开，我会非常失望。

youdao

I'd be very disappointed in us if we didn't leverage him fully.

如果我们不完全发挥他的作用的话，我会非常失望。

youdao

He must be very disappointed with [at, about] your exam results.

他对你的考试成绩一定非常失望。

youdao

This means that all of those green-shoot-recovery-is-just-around-the-corner people are going to be very disappointed in 2013.

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"I think that the British public will be very disappointed that this is all he has got to say, " he said.

BBC: You are in: UK

"By the time the elections come, people will probably be very disappointed in terms of getting things back to normal, " he said.

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