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aerial n.天线
例句:The picture is much clearer with the new aerial.
装上新天线后画面清晰多了。
nitrogen n.氮
例句:Air consists chiefly of nitrogen.
空气主要由氮气组成。
oxygen n.氧
例句:Trees release oxygen into the air.
树木向空气中释放氧气。
oxide n.氧化物
例句:How can you get rid of this oxide coating?
你们该怎样除去这些氧化皮?
hydrogen n. 氢
例句:Water is composed of the elements hydrogen and oxygen.
水是由氢元素和氧元素组成的。 |