Sema
abbr. 美国汽车改装用品协会（the Specialty Equipment Market Association）
🗣️ 情景例句
I'm an exchange student.
我是一名交换学生。
What time does the plane take off?
飞机何时起飞呢？
The system has worked so well, that it has been adopted in other countries too.
由于这种制度行之有效，已被其他国家采纳。