Backcloths
n. （尤指戏剧中用的）背景幕布( backcloth的复数形式 )
🗣️ 情景例句
I have a new math program, and I want to learn how to use it.
我有一个新的数学程式 我想学习怎样用。
A strong grip was necessary to hold onto the large dog.
若要牵住大狗，必须用力握住皮带。
I am busy. How is your business？
我很忙。你的生意做得怎样？