Definition: not working or not doing anything Level: C1
午休期间，工厂的机器闲置着。
During the lunch break, the factory machinery sat ___idle.
许多游客被发现在大厅里无所事事地坐着，而不是去观光。
Many visitors were found sitting ___idle in the lobby instead of touring.
新规定使得几个建筑工程无限期地闲置。
The new regulations left several construction projects ___idle indefinitely.
