Bilatriene
三甲川胆色素, 胆汁三烯
🗣️ 情景例句
but when I received the letter
但是当我收到那封信
There are no birds of this year in last year's nests.
事过境迁。
OK. I'll ring you if I have any news.
好吧。一有消息我就给你打电话。