Concentrations
n. 集中( concentration的复数形式 ); 专心; 关注; 浓度
🗣️ 情景例句
Consider the cost before you decide.
你决定前要先考虑费用问题。
Mr. Smith, would you like to start things off?
史密斯先生，你要开始做事了吗？
That is our peak season.
下个月是我们的旺季。