Background reflectance
其它 Other[计] 背景反射
🧩 词语组成解析
n. 反射比\\n[电] 反射本领
🗣️ 情景例句
You really ought to take some time off.
的确应该休一休假。
How long has he been with that company?
他在那家公司多久了？
It's Sunday today.
今天是星期天。