Concentrations
n. 集中( concentration的复数形式 ); 专心; 关注; 浓度
🗣️ 情景例句
I beg your pardon.
对不起。
Finally,I asked him how old he was.
最后,我问他他多大。
I turned the corner and looked in astonishment.
我转了个弯，十分惊奇地看着。