2 sentences

1. 在接下来的几个月里，他们形成了牢固的友谊。

   zài jiē​xià​lai de jǐ​ge yuè li, tā​men xíng​chéng le láo​gù de yǒu​yì.

   Over the next few months, they formed a strong friendship.

   Source: CCMatrix

2. 在有些文化中，友谊意味着维系两个人的牢固的持续终生的纽带。

   zài yǒu​xiē wén​huà zhōng, yǒu​yì yì​wèi​zhe wéi​xì liǎng​ge rén de láo​gù de chí​xù zhōng​shēng de niǔ​dài.

   In some cultures friendship means a strong life-long bond between two people.

   Source: UM-Corpus: Education