head-on -------- 正面的（形容词）

英文释义
(adjective) Describing a situation in which the front-end of something directly faces the front end of something else.

例句
Last night on a narrow mountain road the drivers of two large trucks died in a terrible head-on collision.
昨晚在一条狭窄的山路上，两辆大卡车发生了猛烈的正面相撞，两车司机死亡。