吸气的英文：
sniff

参考例句：

Inhale deeply
深深地吸气

Inhale!Exhale!
吸气!呼气!

Explosive Breathing
爆发式吸气

To breathe in; inspire.
呼吸入；吸气

The doctor asked me to breathe in, then to breathe out fully.
医生让我先吸气，然后全部呼出。

When we breathe, we draw air into our lungs.
当我们吸气时，把空气吸入肺里。

During inhalation, contraction of the intercostal muscles elevates the ribs
吸气时肋间肌收缩，提起肋骨。

The lack of air in the room makes everyone sniffle.
屋子里空气缺乏，使得每个人都频频吸气。

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

A device, such as a respirator or an inhaler, by which a gas, vapor, or air is drawn in.
吸入器用来吸入气体，蒸汽或空气的仪器，如呼吸器或吸气器。

sniff是什么意思：
n. 嗤之以鼻；嗅；吸气；感觉；察觉；微小的可能性
v. 以鼻吸气；嗅；闻；抽鼻子；抱怨；发现；寻找，好奇地查看

Have the Press got a sniff yet?
新闻界嗅到了一点消息没有？

At last the sobs ceased, to be replaced by sniffs.
最后，啜泣终于止住了，只剩下抽鼻子的声音。

My roommates sniff at my idea of becoming an artist.
我的室友对我要当艺术家的想法嗤之以鼻。

He cleared his nose with a loud sniff.
他大声吸气清了清鼻子。

I'm going, she said with a sniff.
我要走了，她抽了一下鼻子说。