Paleocurrent
[地质]古水流
🗣️ 情景例句
Before a long trip I always give my car a safety check.
远行之前，我总是会对车子进行安全检查。
All are brave when the enemy flies.
敌人逃跑时，个个都勇敢。
I was very glad when the boys won the relay race.
我非常高兴，男同学在接力赛中获胜。