✅ 同义词
🗣️ 情景例句
To help scrub the building interior clean.
帮忙把建筑的内部擦洗干 。
I got home, feeling very tired.
我到家时都累死了[分词作状语]
Modern industry is based on the conception of the maximum production at lowest cost,
以最低成本获取最多产品，