Effectuality
有效性
✅ 同义词
🗣️ 情景例句
Don't be such a grouch.
不要总是牢骚满腹。
I can't do it by myself.
我一个人哪做得完啊！
The six students put their closed hands in front of them.
6个学生将握紧的手放在前面。