Univalve
a. 單瓣的, 單殼的\\nn. 單殼軟體動(dòng)物
??? 情景例句
It's Richard's film!
Richard的底片找到了
I usually feel timid in the presence of very bright people.
站在聰明人面前，我感到羞怯。
The petrol had nearly all been used up.
汽油幾乎已經(jīng)用光。