Sandpapering
v. 用砂纸磨光（某物）( sandpaper的现在分词 )
🗣️ 情景例句
An individual's sex and characteristics are determinded by their unique set of genes.
个人性别和性格是由他们特有的一套基因决定的。
How old?
多老？
OK. Listen, that's the bell.
好的。听，铃响了。