n.【C】药签；医用海绵

vt.擦净；以棉花棒涂敷于

Loose your fist and put the swab on it for 15 minutes. 请松开手,用棉签按压15分钟。

You should never put a cotten swap[cotton swab] or other object into the ear canal. 你不应该放一根棉签或其他物体到耳道之中。

But you can use a swab or cloth to clean the outer part of the ear. 但是你可以用棉签或者布把你耳朵外面的部分擦干净。

Now,I'll just use this swab to sterilize it,then give you the injection. 现在我要用酒精棉球给你擦一擦皮肤

The crew were orderd to swab down the decks. 船员们奉命擦洗甲板。

Little Tom swabbed up the gravy with crusty bread. 小汤姆用硬面包把肉汁抹得干干净净。

The nurse swabbed the wound with mercurochrome. 护士用药签在伤口上敷红药水。