Spect
[化] 单光子发射计算机化断层显像
🗣️ 情景例句
You know something?
知道吗？
He was content that the thing had happened.
这事终于发生了，对此他是满意的。
only of metal, which wears away by friction.
而是由金属组成，而金属可以随着磨擦而磨损殆尽。