Underframing
底层框架的材料或结构部件
🗣️ 情景例句
He should just about get by in the exam.
他这次考试还能勉强及格。
When you're learning to drive, having a good teacher makes all the difference.
初学驾驶有好的教师指导，差别很大。
Gesticulating wildly, the man acted as if he found my offer outrageous, but he eventually reduced the price to $10.
那人激动地打着手势，仿佛我的出价使他不能容忍。但他终于把价钱降到了10英镑。