Microdensitometry
微密度測定
??? 情景例句
Mama, what are they doing to me? Help!
媽媽 ，他們在對我做什么？ 救命呀！
I know the boy whose father is an attorney.
我知道那個男孩的父親是律師。
You have to learn when to ask for help and when to ask for information.
你得學會什么時候請求幫助，什么時候打聽信息。