在办公室里做个“有求必应”的好同事其实是很累人的。谁找你帮忙，你都不好意思说“不”，结果，自己手里的活没干完，额外的工作又来了一堆。有时候，你需要学会对一些不太合理的要求说“不”。
I can't right now, but maybe later.
我现在办不了，可能过几天吧。
Unfortunately, I've had a few things come up.
不好意思，我手头有一些事情要处理。
I'm trying to focus on finishing off some other things.
我正忙着处理一些其他的事情呢。
Sorry but that isn't my strong suit.
不好意思，那个不是我的`强项。
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.
我有别的事情要做。
I can't at that time, but I'm happy to help you with something else later.
这会儿我帮不上忙，不过以后有事我很愿意帮你。
I really don't enjoy that kind of activity.
我不喜欢那样的活动。
I'm sorry, but I have an emergency to attend to.
不好意思，我有个急事要处理。