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- Most intriguing is underwater walking, in which, wearing an oxygen helmet, you meander along the ocean bed among coral and shoals of striped fish. 最引人入勝的是海底漫步，你可以戴著(zhù)潛水用的氧氣頭盔漫步在洋底，徜徉在珊瑚和成群的條紋魚(yú)中間。
- A miner's lamp is fixed onto his helmet. 礦燈固定在礦工的頭盔上。
- Water contains hydrogen and oxygen. 水含有氫和氧。
- Most intriguing is underwater walking, in which, wearing an oxygen helmet, you meander along the ocean bed among coral and shoals of striped fish 最引人入勝的是海底漫步，你可以戴著(zhù)潛水用的氧氣頭盔漫步在洋底，徜徉在珊瑚和成群的條紋魚(yú)中間。
- All visitors to the site must wear safety helmet. 到工地的所有參觀(guān)者必須帶上安全帽。
- A stray bullet struck his steel helmet and glanced off. 一顆流彈擊中他的鋼盔，又彈了開(kāi)去。
- Oxygen enters into many compound bodies. 氧是許多化合物的組成部分。
- Mars is too dry and poor in oxygen. 火星上面過(guò)于干燥，并且缺乏氧氣。
- Water is composed of hydrogen and oxygen. 水由氫和氧組成。
- The man on the motorcycle wore a helmet. 騎摩托車(chē)的人戴了一頂頭盔。
- Fish take in oxygen through their gills. 魚(yú)通過(guò)鰓攝取氧氣。
- Jerry: I never had a beard. I kept my hair inside the helmet. 杰端：我以前是從不留胡子，我頭發(fā)是在頭盔里。
- The oxygen react vigorously with the impurity in the iron. 氧氣與鐵中的雜質(zhì)發(fā)生劇烈的化學(xué)反應。
- The oxygen workshop caught fire and set off a chain of explosions. 氧氣車(chē)間著(zhù)了火，引起了一連串的爆炸。
- Plants can absorb carbon dioxide and release oxygen. 植物可以吸收二氧化碳釋放氧氣。
- A bullet glanced off the captain's helmet. 一顆子彈擦過(guò)上尉的鋼盔。
- A cloth band or scarf wrapped around the crown of a hat or sun helmet. 頭巾纏繞在禮帽或遮陽(yáng)帽帽冠周?chē)牟紬l或三角巾
- Water is composed of the elements hydrogen and oxygen. 水是由氫元素和氧元素組成的。
- A medieval light helmet with a neck guard and movable visor. 頭盔中世紀有護頸和活動(dòng)護面的輕便頭盔
- There was a shortage of oxygen at the top of the mountain. 山頂上缺氧。
