Laff
abbr. launcher air filtration facility 发射器空气过滤设备
🗣️ 情景例句
Is it that serious a problem, Grandpa?
这个问题有那么重要吗，爷爷？
Nothing will come of nothing.
无风不起浪。
My wife was delighted that things had returned to normal once more.
一切又都恢复了正常，为此我妻子十分高兴。