Sinesoid
正弦曲线
🗣️ 情景例句
One of the critics is coming over this morning for a preview.
一位评论家今天早上要来看预展。
I ought to go to bed now.
我应该现在去睡觉。
Oh dear! It's very cold today, isn't it?
天哪，天真冷，不是吗？