by chanceby accident; unexpectedly 偶然地;意外地 * It happened by chance. 这是偶然发生的。 * The apple fell by chance on Bobby's head. 苹果碰巧掉在鲍比的头上。by chance偶然地;意外地:It is not a secret that many great inventions and discoveries are made by chance.许多伟大的发明和发现是偶然做出来的,这并不是秘密。 |