To inhale is to breathe in: air, smoke, gas, or a smell. The air goes in through your nose or mouth and down into your lungs.

To inhale吸入 is to breathe in就是把...吸進去：air, smoke, gas, or a smell空氣、煙、氣體，或味道。The air空氣 goes in through your nose or mouth從你的鼻子或嘴巴進去, and down into your lungs再往下進到肺裡。

You inhale from an inhaler; you inhale cigarette smoke; you may inhale sharply when you are surprised.

You你 inhale from an inhaler會從吸入器吸藥；you inhale cigarette smoke會吸香菸的煙；you你 may inhale sharply when you are surprised受到驚嚇時可能會急促地吸一口氣。

It names the in-half of breathing; the out-half is exhale. Inhale is a little more precise than just “breathe,” which can mean the whole cycle.

It它 names the in-half of breathing指的是呼吸裡「吸」的那一半；the out-half「吐」的那一半 is exhale叫做 exhale。Inhale Inhale is a little more precise than just "breathe,"比單純說 "breathe" 精確一點, which can mean the whole cycle因為 breathe 可以指整個呼吸循環。

Informal English also stretches it: “He inhaled that sandwich” means he ate it very fast, as if he breathed it in — a joke, not a medical use. As a noun, an inhale is one inward breath (“Take a deep inhale”), but the verb is far more common.

Informal English非正式英文 also stretches it也會延伸這個字的用法："He inhaled that sandwich"「他 inhaled 那個三明治」 means he ate it very fast意思是他吃得超快, as if he breathed it in就好像把它吸進去一樣——a joke, not a medical use是個玩笑話，不是醫學用法。As a noun當名詞用時, an inhale一個 inhale is one inward breath指一次吸氣（"Take a deep inhale."深深吸一口氣）, but but the verb is far more common不過動詞用法常見得多。