1 sentence

1. 在这座大城市里找一个多年未见的朋友，简直是大海捞针。

   zài zhè zuò dà chéng​shì lǐ zhǎo yī gè duō nián wèi jiàn de péng​you, jiǎn​zhí shì dà​hǎi​lāo​zhēn.

   Finding a friend you haven't seen for years in this big city is like looking for a needle in a haystack.

   Source: Dong Chinese Dictionary