Underframing
底层框架的材料或结构部件
🗣️ 情景例句
I am, too, Son.
我也很高兴， 儿子。
There is a crook(=affliction,trial) in the lot of every one.
人生总有倒楣事；人生总有不如意处。
I got up early and bought thirty-seven cards.
我早早起了床，买来了37张明信片。