Idling
[计] 空载, 无载\\n[化] 空运转
✅ 同义词
🗣️ 情景例句
How much does a round trip ticket to go there cost?
一张去那边的往返票要多少钱？
I'm listen to the music downstairs.
我在楼下听音乐。
Our knowledge of the universe is growing all the time.
我们对宇宙的认识一真在增长。