Chronolith
[地质]岩石年代单位
🗣️ 情景例句
Well, you can write to her.
嗯，你可以写信给她。
This offer must be withdrawn if we haven't received your reply within five days.
如果5天之内我方未必到贵方答复，该盘撤消。
Suddenly, there was a slight trembling sound from below, and the captain went down to see what had happened.
突然，从船舱下部传来一声微颤音，船长走下船舱去查看究竟。