1、A man in a crash helmet was mounting a motorcycle.
一個(gè)戴著防撞頭盔的男子正騎上一輛摩托車。

2、He pulled on a battered old crash helmet with a scratched visor.
他戴上了一頂破舊的、面罩上已有劃痕的防護(hù)頭盔。

3、A man in a crash helmet was mounting a motorbike.
一位戴頭盔的男子正跨上摩托車。