他的双手在空中乱抓。
He breathed in the frosty air.
他吸进冰冷的空气。
She gulped air into her lungs.
她大口地把空气吸入肺部。
The dancers kicked their legs in the air.
舞蹈员做了空中踢腿的动作。
The still air smelled faintly of furniture polish.
久未流通的空气中有股淡淡的家具漆的气味。
Iron reacts with water and air to produce rust.
铁和水及空气发生反应产生铁锈。
The warm damp air attracts a lot of mosquitoes.
温暖潮湿的空气招来了大量蚊子。
Exclusion of air creates a vacuum in the bottle.
瓶子里的空气排除后就产生真空。
Our eyes were burning from the chemicals in the air.
空气中弥漫的化学物质熏得我们的眼睛火辣辣地痛。
The November air stung my cheeks, a harbinger of winter.
11月的空气刺痛了我的脸颊，这是冬天要来的先兆。
Cases of breathing difficulties increase in lockstep with air pollution.
呼吸困难的病例随空气污染的加剧而增加。
The volcano threw new showers of magma and ash into the air.
这座火山向空气中喷发了新的岩浆和火山灰。
Plants absorb carbon dioxide from the air and moisture from the soil.
植物从空气中吸收二氧化碳，从泥土中吸收水分。
He ventured that plants draw part of their nourishment from the air.
他试探着提出了植物从空气中吸取它们的部分养分的观点。
If headaches only occur at night, lack of fresh air and oxygen is often the cause.
如果头痛只发生在晚上，缺少新鲜空气和氧气常常是其原因。
Coordinating airline traffic on the ground is as complicated as managing the traffic in the air.
协调飞机在地面上的交通和掌控空中交通一样复杂。
While there is still sufficient trapped air within the container to keep it buoyant, it will float.
只要容器中仍然有足够的空气使它能浮起，它就能漂浮。
Kids just love being able to romp around in the fresh air without having to wrap up warm.
孩子们就是喜欢在新鲜的空气里嬉闹，无须穿得太暖和。
In breathing the chest muscles expand the rib cage and allow air to be sucked into the lungs.
呼吸时胸部肌肉使胸廓扩大让空气吸入肺部。
烟屑污染空气。
吸烟会污染空气。
他的肺部需要空气。
It can absorb formaldehyde, purifying the air?
真的能吸收甲醛、净化空气吗？
A tantalizing aroma of roast beef fills the air.
烤牛肉诱人的香味弥漫在空气中。
Wind is a current of air caused by a vacuum caused by hot air rising.
风是由热空气上升产生真空而引起的空气流动。
In the troposphere, the air at higher altitudes is in general cooler than the air below it.
在对流层中，高海拔地区的空气通常比低海拔地区的空气冷。
As this air is warmed and picks up moisture, it becomes lighter than the air above it.
当这些空气被加热并吸收了水分，它会变得比上面的空气轻。
Trees are natural air conditioners. They take harmful gas from the air, and release oxygen into the air.
树木是天然的空气净化器，他们可以吸收空气中有害的气体并向空气中释放氧气。
He lifted her bodily into the air.
他把她整个人举到空中。
He lifted her bodily into the air.
他把她整个人举到空中。
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