Concentrations
n. 集中( concentration的复数形式 ); 专心; 关注; 浓度
🗣️ 情景例句
How many people are there in your family?
你家里有几口人？
The foundation of true joy is in the conscience.
真正的愉快之根本在于良心。
They sighed and cried out for more water, but food and water were only given out once a day.
他们叹息着，嚷着要水喝，而水和食物每天只发放一次。