当我们 face (something) head-on 的时候，也就是说我们勇敢面对并处理碰到的问题或困难。

例句

Shopkeepers are so concerned about the high crime rate in their area that they're putting commercial issues aside and getting together to tackle the problem head-on.

John was blind from childhood but his parents have always been proud of him. He's always been used to confronting his disabilities face-on.

Youth unemployment will continue to rise till the government decides to face the chronic lack of good schools head-on.

请注意

如果你 keep your head down, 那么就是说表现很低调，避免引起他人的注意力。

Joan's boss is in a foul mood today and she's been avoiding trouble by keeping her head down.