Rav
abbr. 瑞星杀毒软件；右心房容积（Right Atrial Volume）
🗣️ 情景例句
What was that?
会是什么呢？
It's $30.00 one way or $55.00 round trip.
单程票价30美元，来回票价55美元。
I'm thinking of hanging the lamp from the ceiling.
我打算把灯吊在天花板上。