Forepump
前置真空泵, 预抽真空泵
🗣️ 情景例句
And the new drawings for the toy spaceship.
还有玩具太空船的新草图。
A friend exaggerates a man's virtue, an enemy his crimes.
朋友宣扬人的美德，敌人夸大人的罪过。
Glancing at the bits of wood and metal that lay around him,
年轻人看了一眼周围的碎木片和碎金属片，