water is composed of
水是由
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Water is composed of hydrogen and oxygen.
水由氢与氧化合而成。
《新英汉大辞典》
Water is composed of oxygen AD hydrogen.
水是由氧与氢构成的。
youdao
Water is composed of the elements hydrogen and oxygen.
水是由氢元素和氧元素组成的。
The shape of the polar cap indicates that it is composed primarily of water ice, with a volume of 1.2 million cubic kilometres.
BBC: By BBC News Online Science Editor Dr David Whitehouse
Because honey is composed of saturated sugars, it sucks up water, depriving bacteria of the liquid they need to survive and multiply.
ECONOMIST: Honey may help in the battle against superbugs
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