3 sentences

1. 门上帖着一副春联。

   mén shàng tiē zhe yī fù chūn​lián.

   A pair of Spring Festival couplets is pasted on the door.

   Source: Dong Chinese Dictionary

2. 大年初一，家家户户都要张贴春联。

   dà​nián chū​yī, jiā​jiā​hù​hù dōu yào zhāng​tiē chūn​lián.

   On the first day of the Lunar New Year, every household puts up Spring Festival couplets.

   Source: Dong Chinese Dictionary

3. 很多春联利用谐音来表达吉祥的寓意，比如“鱼”和“余”。

   hěn​duō chūn​lián lì​yòng xié​yīn lái biǎo​dá jí​xiáng de yù​yì, bǐ​rú“ yú” hé“ yú”.

   Many Spring Festival couplets use homophones to express auspicious meanings, such as 'fish' and 'surplus.'

   Source: Dong Chinese Dictionary