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Air is a mixture of gases.
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空气是气体的混合物。 |
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Air is a mixture, not a compound of gases.
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空气是气体的混合物，不是化合物。 |
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Air is buoyant；balloons float in it.
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空气有浮力；气球能浮动于其中。 |
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Air is essential to life.
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生命不能缺少空气。 |
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Air is indispensable to life.
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空气是生命所必需的东西。 |
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Air is indispensable to life.
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空气对生命而言是不可缺少的。 |
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Air is necessary in many ways.
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空气在很多情况下是必不可少的。 |
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Air is shapeless.
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空气是没有定形的。 |
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Air is the medium of electrical insulation between electrically live parts and grounded (earthed) metal parts.
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空气是带电零件和接地金属零件之间的绝缘介质。 |
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Air is to man as water is to fish.
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空气对于人，犹如水之于鱼。 |
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Air is vital to all creatures.
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空气对所有的生物都极为重要。 |
