The Chinese team will meet the American team head-on.
中国队将迎战美国队。

The idea is to hit atoms head-on with laser beams, slowing them down.
这个办法就是用激光束打击原子正面让其速度减慢。

We dealt a head-on blow to our enemies, never allowing them a breathing spell.
我军对敌人进行迎头痛击，坚决不让敌人喘息。

Running with a low load of fuel meant there was more room for a build-up of petrol in the tank in front of the driver, which in a head-on crash... you get the picture.
在油箱内汽油不多的情况下行驶意味着司机座前的油箱里石油蒸汽积聚的空间很大，如果汽车迎面相撞－你可以想象那是什么样的情景。

The cars collided head-on.
车正面相撞。

He was killed as a result of a head-on collision with another vehicle.
他被另一辆车迎面撞上，因而丧生。