Permian
a. 二叠纪的, 二叠纪岩的\\nn. 二叠纪(岩)
🗣️ 情景例句
When you're out in the fresh air like this, it makes you hungry.
当你来外面呼吸这么新鲜的空气时， 就很容易饿。
Nothing must be done hastily but killing of fleas.
除非消灭跳蚤，做事不必急躁。
The objects on display were pieces of moving sculpture.
展品都是些活动的雕像。