Sargassan
马尾藻多糖
🗣️ 情景例句
But it is not polite to ask older people their age.
但问老人的年龄是不礼貌的。
He took two weeks off in August.
他在八月份休假两星期。
I have a lot in common with my sister.
我和我姐姐有很多相同之处。