Underframing
底层框架的材料或结构部件
🗣️ 情景例句
Richard, isn't that too much to ask of your mother?
Richard，那是不是太麻烦你母亲啦？
I've got my hands full.
我手头正忙。
Later, the Crystal Palace was moved to South London.
后来，“水晶宫”被移到了伦敦南部。