B. i.
[医] 棱底向内, 缓冲指数
🧩 词语组成解析
[医] 不旋光的
🗣️ 情景例句
I hope you've brought your pictures along.
我希望你带了你的照片一起来。
When would you like to return?
你打算什么时候回来？
Since that time, various types of hovercraft have appeared and taken up regular service.
从那以后，各种各样的气垫船出现了，并开始了定期航行服务。