在辦公室里做個“有求必應”的好同事其實是很累人的。誰找你幫忙，你都不好意思說“不”，結果，自己手里的活沒干完，額外的工作又來了一堆。有時候，你需要學會對一些不太合理的要求說“不”。

I can't right now, but maybe later.

我現在辦不了，可能過幾天吧。

Unfortunately, I've had a few things come up.

不好意思，我手頭有一些事情要處理。

I'm trying to focus on finishing off some other things.

我正忙著處理一些其他的事情呢。

Sorry but that isn't my strong suit.

不好意思，那個不是我的強項。

I'm sure you will do fine on your own.

我相信你自己可以做好的。

I'm afraid I'm committed to something else.

我有別的事情要做。

I can't at that time, but I'm happy to help you with something else later.

這會兒我幫不上忙，不過以后有事我很愿意幫你。

I really don't enjoy that kind of activity.

我不喜歡那樣的活動。

I'm sorry, but I have an emergency to attend to.

不好意思，我有個急事要處理。

（來源：新浪博客，英語點津 Helen 編輯）