Cofunction
n. 余函数
🗣️ 情景例句
What is wrong with you?
你怎么啦？
Don't forget to phone to let us know you arrived safely.
不要忘记打电话，告诉我们你已经安全抵达。
There's no time! laughed Mother.Here are the twins.
“没时间了！”母亲笑着说，“双胞姐妹到了。”