Rms
英国邮政, 英国邮船\\n[电] 均方根
🗣️ 情景例句
I estimate his age to be about 30.
我估计他的年龄大约30岁。
To examine the problem
检讨问题
Sometimes, my grandma decides to buy one big birthday present for both of us.
有时，奶奶决定给我俩就买一件大生日礼物。