Effciency
[机] 效率
🗣️ 情景例句
Come on, Mar.
得了， Mar。
Which one is the longest river in China?
中国哪条河流最长？
When she's happy, I'm happy. When she feels unhappy, I feel the same.
她快乐时，我快乐。她不高兴时，我也不高兴。