2 sentences

1. 在茫茫人海中，能与你相遇是一种缘分。

   zài máng​máng rén​hǎi zhōng, néng yǔ nǐ xiāng​yù shì yī zhǒng yuán​fèn.

   In the vast sea of people, it is fate that we met.

   Source: Dong Chinese Dictionary

2. 他一直渴望在茫茫人海中寻得一位可以倾诉衷肠的良知。

   tā yī​zhí kě​wàng zài máng​máng rén​hǎi zhōng xún​dé yī wèi kě​yǐ qīng​sù zhōng​cháng de liáng​zhī.

   He has always longed to find a soulmate among the crowd to whom he can open his heart.

   Source: Dong Chinese Dictionary