Ecat
[醫][=emission computed assisted tomography]發射計算機體層攝影術
??? 情景例句
Welcome home--
歡迎歸來。
She won a scholarship to the state university.
她獲得就讀洲立大學的獎學金。
In man's early days, competition with other creatures must have been critical.
在人類早期，人類與其他生物的競爭一定是必不可少的。