Paleozoic
a. 古生代的\\nn. 古生代
✅ 同义词
🗣️ 情景例句
Work hard and play hard, my friend.
工作的时候要拼命干，而娱乐的时候要尽情玩，朋友。
He emerged as leader at the age of thirty.
他在30岁时出人头地成为领袖。
He was so surprised at being discovered that he did not even try to run away.
他由于被人发现而感到非常吃惊，甚至都没有企图逃跑。