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(yáng)帽。
He donned work clothes and a wicker helmet.
他穿上工作服，戴上柳條帽。