Manhole cover
01
井盖, 检修孔盖
a heavy metal lid that covers a manhole to prevent access and ensure safety
例子
They replaced the damaged manhole cover.
他们更换了损坏的井盖。
She heard a loud noise when a car drove over the manhole cover.
当一辆车驶过井盖时,她听到了一声巨响。



























