How often does she brush her teeth.Colour them red啥意思

问题描述:

How often does she brush her teeth.Colour them red啥意思

how often does she brush her teeth.
她多久刷一次牙。
color sth + 颜色,"把...油漆成..颜色"

她多久刷一次牙?
把他们涂成红色。

她多久刷一次牙?把它们涂成红色

刷牙太频繁,把牙龈刷红了(或者把牙龈刷出血了)