Acsin
反正弦函数
🗣️ 情景例句
It was a pleasure meeting you, too.
我也很高兴碰到你。
How long will it take me to get there?
到那儿要多长时间？
he said. But I don't have many friends, and I don't enjoy myself very much. I don't know why!
他说，“但是我没有很多朋友，我过得不很愉快。我不懂为什么！”