Determinand
[化] 欲測物(元素、離子、原子團等)
??? 情景例句
I'm afraid Tony's days are numbered.
恐怕托尼快要被解雇了。
He recommended me for the post of principal.
他推薦我擔任校長。
I haven't heard from her for a long time.
我好久沒有她的消息了。