Afr
[计] 容许故障率
🗣️ 情景例句
What is it?
是个什么样的计划？
A full belly counsels well.
衣食足而后知荣辱。
The fire service began to wonder whether a gas might have caused the fire.
消防部门开始怀疑有一种气体可能会导致火灾。