哎呀——你怎么能这么不小心！

___Well— how could you be so careless!

嗯——我不知道该不该现在告诉你这个消息。

___Well—I'm not sure if I should tell you the news now.

嗯——我想我们该去吃午饭了。

___Well—I think it's time we went for lunch.