She's headed for Philadelphia,她准备去费城

head for朝 ... 方向去

The boat was heading for some rocks.

那船正驶向礁石。

The soldiers headed for the frontier with caution.

士兵们小心翼翼地朝边境迈进。

相关短语:have no head for在某方面缺少天分

I won't say that he has no head for figures.

我不敢说他没有数学头脑。

It's not too late to say congratulations, is it?什么时候说恭喜都不晚吧

too...to...太...以至于不能...

My lame excuse is that I have too much to do.

我那站不住脚的借口就是我要干的事太多了。

The road is too narrow to allow the passage of gondola.

这条街太窄，大型货车不能通过。

You're asking the kind of questions I'm supposed to report.你问我这些问题，我该要报告上级了

supposed to猜想会； 应该

They were supposed to be here an hour ago.

他们应该在一小时以前到达这里。

You're not supposed to smoke in here.

你不可以在这儿抽烟。