Picometer
皮(可)米(10的-12次方米)
🏥 医学释义
微微米（10-10cm）
🗣️ 情景例句
Don't count your chickens before they hatch.
小鸡孵出之后再算数。
A man may love his house well without riding on the ridge.
有宝何必人前夸。
It was mailed last week.
上个礼拜我们还没收到。