Backing vacuum
[化] 前级真空
🧩 词语组成解析
backing
[['bækiŋ]]
n. 后退, 衬背, 后援, 支持者\\n[化] 衬垫
🗣️ 情景例句
You messed up.
你办砸了。
Who put you in charge?
谁说让你做主了啊？
and he had seen there evidence enough to overthrow Aristotle and Ptolemy together.
观察到的论据足以把亚里士多德和托勒密一起推翻。