Prokinin
激肽原
🗣️ 情景例句
If I've ever been sure of anything, I'm sure of this; your team is going to lose the same game on Saturday.
这一次我十分肯定：你们队星期六的比赛会输。
There are two sides to every question.
每个问题都有两个方面。
If I get there early, I can see the doctor quickly, she thought.
“早到就能早看医生，”她想。