Phosphatidalcholine
缩醛磷脂酰胆碱
🗣️ 情景例句
He's not making much progress with his English.
他的英语进步不大。
Perhaps he isn't here.
也许他不在这儿。
It is best to keep to hot drinks, bottled or canned drinks of well-known brand names----
最好仅饮用开水，名牌瓶装或罐装水