Semivariable
[经] 半变动的(成本)
🗣️ 情景例句
The drama club is putting on a play tomorrow night.
明晚戏剧社要上演一出戏。
Am I your teacher?
我是你们的教员吗？
The test finished. We began our holiday.
考试结束了，我们开始放假。