Sourceless
a. source的变形
🗣️ 情景例句
Well, that's easy.
哦， 那很简单。
He is playing on the merry-go-round in the park.
他正在公园里骑旋木马。
The old farmhouse the family lived in was to be replaced by new $500,000 home.
这家人住的旧家舍将由一座价值50万美元的新住宅所取代。