Bom
abbr. 物料清单（Bill of Materiel）
🗣️ 情景例句
and how hard it is
他还说这件事很难
Who knows not how to dissemble knows not how to live.
掩饰感情全不会，怎样生活必不知。
I'd like to look at some sweaters.
我想看看毛衣。