Effectless
无效的
🗣️ 情景例句
I've got it. This one's on me.
我都付了。这一顿我请客。
I don't know whether it will rain or not.
我不知道是否将下雨。
I'm sorry to burst in on you like this, but I'm really upset.
我很抱歉这样突然地找您，但我真的很心烦。