Vacuum filler
[化] 真空填充器
🧩 词语组成解析
filler
['filə]
n. 填装物，填塞物;填装者，填注者;（杂志等的）补白;（报纸等的）补白;
🗣️ 情景例句
but when I received the letter
但是当我收到那封信
There was perfect harmony between the two brothers.
兄弟俩感情非常融洽。
In so far as any inquiry is a secret one,
任何一项研究都涉及到保密，