1.
He found it difficult to breathe at high altitudes.
他觉得在高空呼吸困难。
2.
The air inhaled and exhaled in respiration.
呼吸的空气在呼吸中吸入和呼出的空气
3.
To inhale and exhale(air, for example)during respiration.
呼吸在呼吸过程中吸进和呼出（例如空气）
4.
causing difficulty in breathing especially through lack of fresh air and presence of heat.
导致呼吸困难，特别是缺少新鲜空气以及温度高。
5.
the air that is inhaled and exhaled in respiration.
在呼吸中吸入和呼出的空气。
6.
compressed air line breathing apparatus
压缩空气管道呼吸装置
7.
the process of taking in and expelling air during breathing.
吸入和呼出空气的过程。
8.
We inhaled the fresh air.
我们呼吸新鲜空气。
9.
The foul air is unfit to breathe.
肮脏的空气不适宜呼吸。
10.
To draw(air or smoke, for example) into the lungs by breathing; inspire.
吸入通过呼吸吸进(如空气或烟)肺内；吸气
11.
During the intermission, let's go out for some fresh air.
幕间休息时,我们出去呼吸呼吸新鲜空气吧。
12.
A Clinical Study on Controlled Ventilation with Jet-flow Air-mixing CPAP Respirator;
射流空混CPAP呼吸器用于控制呼吸的研究
13.
In this bleak realm of upper air nothing breathed, nothing grew
在这萧瑟姜凉的高空世界里，没有东西在呼吸，没有东西在生长。
14.
Sons of Ether: Making science more, better, faster. They just have to get out of the lab more often!
以太之子：让科学更高更快更强。该多走出实验室呼吸些空气！
15.
When you're breathing deeply, you're breathing some fresh air in.
当你深呼吸时,你吸入一些新鲜空气。
16.
Siebe Gorman aqualung
史柏高文水中呼吸器
17.
When I have free time, I often go to the country for fresh air.
我一有空就到乡下去呼吸新鲜空气。
18.
The air at high altitudes does not have enough oxygen to supply the body's needs. Divers also carry extra oxygen because they cannot breathe under water.
在高空，空气含氧不足，无法供应身体需要。由于水下不能呼吸，潜水员也携带额外的氧气。