Ecat
[医][=emission computed assisted tomography]发射计算机体层摄影术
🗣️ 情景例句
Oh, here are my certificate of merit.
哦，这里是我的获奖证书。
I haven't seen you for ages.
好久没见了。
We've got some cheaper ones in the back room.
后面房间里有一些比较便宜的。