Acsin
反正弦函数
🗣️ 情景例句
How's your English coming along?
你英语学得怎样了？
She has good taste in clothes.
她对服装很有鉴赏力。
when he knew that he was dying, he made me promise to go on my own.
他知道自己已奄奄一息，于是他要我答应一定单独回故乡一趟。