例句：

　　Their friendship soon deepened into love.

　　他們的友誼很快發(fā)展成為愛情。

　　Your friendship means a great deal to me.

　　你的友誼對我來說是很珍貴的。

　　By degrees their friendship grew into love.

　　他們的'友誼逐漸發(fā)展成為愛情。

　　A bond of friendship had been forged between them.

　　他們之間形成了一種友誼的紐帶。