y chance
by 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.
y chance
by 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.