Positron emission tomography
[化] 正电子成象术
🧩 词语组成解析
n. 正电子\\n[化] 正子; 正电子
n. X线断层摄影术\\n[医] X线体层照相术, X线断层照相术
🗣️ 情景例句
Oh, you've been here before.
噢，你以前来过的。
His hand is swollen, Does it hurt?
他的手肿起来了，疼不疼？
I'm afraid that it's not going to work out.
我恐怕这事不会成的。