Sandpapering
v. 用砂纸磨光（某物）( sandpaper的现在分词 )
🗣️ 情景例句
Tell me about your educational background.
告诉我你的学习背景。
I'm feeling under the weather.
我觉得不舒服。
Perhaps we van make it later.
那么，也许改天吧。