Concentrations
n. 集中( concentration的复数形式 ); 专心; 关注; 浓度
🗣️ 情景例句
His wife just found out about his mistress.
他的妻子刚刚发现了他有外遇。
How much will that be altogether?
总共多少钱？
I often fish for hours without catching anything.
我经常一钓数小时却一无所获，