1.hear about 听说；得知

Yes, we hear about this all the time and and it does set us thinking as to who are better drivers?
没错，我们常常听到对于这个问题的讨论，不禁让我们要坐下来好好想想到底谁开车更好。

All Iraqis now, when they hear about that, they're very sorry about that, because the mosque is only for praying, not for using weapons, or something like this, to fight anyone.
他说：“现在所有的伊拉克人，当听说这一消息时，都很难过，因为清真寺只是用于祈祷的，不是用武器或其它类似的东西来对抗别人的场所。

2.nothing but 只有；只不过

It seems you and I together can do nothing but shopping.
你和我在一起好像除了购物就不能做点别的。

For himself he wanted nothing but to be the humble servant of his country.
他感人地说，自个儿别无他求，只求能成为祖国谦卑的仆人。

3.speak of 谈到；论及

He didn't speak of the accident.
他没有提到那次事故。

The heavy rain speak of the impossibility of the picnic this afternoon.
这场大雨显然使今天下午的野餐泡汤了。