Evorsion
[地質]渦流侵蝕
??? 情景例句
She has now held the post of Prime Minister longer than anyone else this century.
她現在擔任首相任期之長在本世紀是前所未有的。
He was my sincere friend.
他是我誠摯的朋友。
Please come in and sit down. But come to school earlier next time.
但下次要早點到校。