Underpinn
v. 从下头支持;支撑;援助
🗣️ 情景例句
She's coming over this morning to help me with my math.
她今天早晨要过来帮我补习数学。
I know the boy whose father is a dentist.
我知道那个男孩的父亲是牙医。
Finding that he could not remember a word of the letter either,
狱卒发现自己连一个字也记不住，