Centron
原子核
🗣️ 情景例句
Ellen.
Ellen。
The flight number is ak708 on september 5th.
班机号码是9月5日ak708
Paw prints were seen in a number of places and puma fur was found clinging to bushes.
在许多地方看见爪印，灌木丛中发现了粘在上面的美洲狮毛。