tooth
🇺🇸
/tuːθ/
🇬🇧
/tuːθ/
A hard, white part in your mouth that you use to bite and chew food.
She brushed her tooth carefully to keep it clean.
她仔細地刷牙以保持牙齒清潔。
A small, pointed part that sticks out from an object, like the ridges on a comb or the cogs on a gear.
The gear's tooth was broken, causing the machine to malfunction.
齒輪的齒壞了,導致機器故障。