Reflectivity
n. 反射率\\n[化] 反射率
?? 醫學釋義
反射性，反射率，反射系數
??? 情景例句
Please have the porter bring my bags up.
請讓搬運工把我的箱子搬到樓上去。
What do you know?
你懂什么？
I'd like to invite you to dinner before you go. What about Thursday?
我想在你走之前請你吃飯。周四怎么樣？