在辦公室裡做個“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，自己手裡的活沒幹完，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，不過以後有事我很願意幫你。
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。