Phosphoglycoprotein
磷糖蛋白
🗣️ 情景例句
Hi.
你好！
I'm afraid I won't be able to come.
我恐怕不能来。
I left a suitcase on the train to London the other day.
几天前我把一只手提箱忘在开往伦敦的火车上了。