Put on a helmet, fire up your engine and head out on the open road.

　　戴上頭盔，發(fā)動(dòng)引擎，開上鄉(xiāng)村干道。

　　Miners wore a helmet as a guard against falling rocks.

　　礦工頭戴鋼盔，防備落下的巖石。

　　They now face the prospect of having to wear a cycling helmet by law

　　他們現(xiàn)在面臨的情形是：不久將需要依法佩戴摩托車頭盔。

　　The tennis umpire wore a sun helmet.

　　那位網(wǎng)球裁判戴著硬殼遮陽帽。

　　He donned work clothes and a wicker helmet.

　　他穿上工作服，戴上柳條帽。