Acsin
反正弦函数
🗣️ 情景例句
Won't you be busy?
你不是有事吗？
Love sought is good, but given unsought is better.
追求而得的爱情固然美好，但不经追求而得的爱情更为美好。
At last I hung up the receiver.
我终于挂上了话筒。