Chocking
a. 堵塞的\\nv. 堵塞；用楔垫垫住（chock的ing形式）
🗣️ 情景例句
When you have a business meeting in the United States, come to the appointment on time.
当你在美国有商务会晤时，一定要按时赴约。
Last year I studied sociology and political science in school.
去年，我在学校攻读了社会学和政治学课程。
Why not?
为什么没有？