Kr
[医] 氪(36号元素)
🗣️ 情景例句
OK, Betty, Tim, and Frank.
好， Betty ，Tim ，Frank。
Archeologists still can only surmise as to the origin of Man.
考古学家们对于人类的起源依然无法推测。
I've never met him but I've talked to him on the net.
我没见过他，但我和他在网上聊过天。