friendship当其为友谊或朋友关系时，为可数名词，通常有形容词修饰，例如a close friendship亲密的友谊；当其强调友谊的状态时，是不可数名词，例如a conference to promote international friendship促进国际友好关系的会议。

相关例句：

1、Your friendship means a great deal to me.

你的友谊对我来说是很珍贵的。

2、I looked upon the gift as a seal on our friendship.

我把你的礼物看作我们之间友谊的见证。

3、Respect and friendship provide a solid foundation for marriage.

尊重和伴侣关系是婚姻的牢固基础。

4、I formed many close friendships at college.

我大学时结交了许多密友。

5、Nothing cements a friendship between countries so much as trade.

贸易最能增强国家间的友谊。