Arenigian
[地质]阿仑尼克阶(早奥陶世晚期)
🗣️ 情景例句
That's it.
对了。
His controversial speech caused a wild discussion.
他们有争议的讲话引起了一场广泛的讨论。
During the day, sleep comes in snatches.
白天是忽睡忽醒，