bit，读音[bɪt]：n. [计] 比特（二进位制信息单位）；少量；马嚼子；辅币；老一套；一点，一块；vt. 控制；adj. 很小的；微不足道的；adv. 有点儿；相当；vt. 咬（bite的过去式和过去分词）。

bite，读音[baɪt]：vt. 咬；刺痛；n. 咬；一口；咬伤；刺痛；vi. 咬；刺痛；abbr. 机内测试设备（Built-In Test Equipment）；n. (Bite)人名；(匈)比泰。

He took the apple and bit down. 他拿起苹果一口咬下去。

She took a pear and bit into it. 她拿起一只梨，一口咬下去。

The lion bit his trainer. 狮子咬伤其驯兽者。

The dog bit me on the leg. 那条狗咬了我的腿。

The clothes feel a bit damp. 衣服有点儿发潮。

This old nut won't bite [grip]. 这个旧螺母咬不住扣儿。

This scar is from the bite of a dog. 这是狗咬后留下的伤疤。

The scored jaws of a vise help it bite the work. 台钳上有刻痕的虎钳牙帮助它紧咬住工件。

He has been fishing all morning but hasn't had a single bite. 他钓了一上午的鱼，但没有一条鱼咬钩。

I wanted to bark at him and bite his head off. 我当时真想向他狂吠然后把他的头咬下来。