Concentrations
n. 集中( concentration的复数形式 ); 专心; 关注; 浓度
🗣️ 情景例句
Great! What is the daily rate?
太棒了， 房间一天多少钱？
How long will it take for a package to get to California?
你把包裹寄到加州要多长时间?
The kiwi, which is New Zealand's national bird, is one of these types of flightless birds.
几维，新西兰的国鸟，就是这些不能飞行的鸟类当中的一种。