Underframing
底层框架的材料或结构部件
🗣️ 情景例句
He did everything within his power to achieve the goal.
他竭尽全力去实现目标。
I would like to call a plumber to come this afternoon.
我要叫一个水管工人今天下午来。
I am in charge of the company when the manager is out.
经理不在时山我来管理公司。