Columbium
n. [化]鈮
??? 情景例句
I don't want to sound like a busybody, but didn't you plan to go abroad?
我并不想瞎打聽，可你原來不是打算出國嗎？
A fool's bolt may sometimes hit the mark.
愚者千慮，必有一得。
I had left it on a chair beside the door and now it wasn't there!
我曾把它放在門邊的椅子上，可這會兒不見了！