Sinh
hyperbolic sine 正弦双曲线
🗣️ 情景例句
I'm retired.
我退休了。
The best teachers of humanity are the lives of great men.
启迪人性最好的导师是伟大人物的生活。
Autumn is a busy season. The days get shorter and the nights get longer.
秋天是繁忙的季节。白天逐渐变短，夜晚则渐渐变长。