Opsonification
调理素作用
🗣️ 情景例句
We tested it last week on twelve- to fifteen-year-olds,
我们上一周曾在十二岁至十五岁的孩子中试过这项游戏，
I asked him to buy it for me, but he wouldn't.
我请他帮我买，但是他不肯。
I'm certain he'll go to see the film, because he's bought a ticket.
我肯定他会去看电影的，冈为他把票都买好了。