nit是什么意思音标:英 [nɪt]美 [nɪt]
n. 没用的人, 幼虫, 卵
[医] 虮, 虱卵
n. a luminance unit equal to 1 candle per square meter measured perpendicular to the rays from the source
n. egg or young of an insect parasitic on mammals especially a sucking louse; often attached to a hair or item of clothing
nit的用法和例句：
1.She didn't get any nits for about 3 weeks after using it.
用后3周她都没有再长头虱
2.I've never seen nits look quite so dead before.
我从没见过虱子被清除这么彻底