Evenometer
光电式均匀度测定仪
🗣️ 情景例句
and wrote to his wife Martha.
给他妻子Martha写信。
Beggars must (should) be no choosers.
行乞的哪能挑肥拣瘦；饥不择食。
He's over there. He's cleaning the car.
他在那边，在洗车。