Underframing
底层框架的材料或结构部件
🗣️ 情景例句
I'll be in town next week, maybe you could fit me in.
我下个礼拜会在城里，也许你能安排时间见我。
If I have time tomorrow,I think I'll get a haircut.
如果我明天有时间，我认为我应该理发。
It's against the law.
这是违法的。