a couplet meaning in Chinese

一副对联

Listen . let me say a couplet
听好了.我说句对子
Let me say a couplet
我来说个对子
In addition , a couplet reflects the writer s knowledge of epigraphic studies and chinese philology as well as his artistic accomplishment in calligraphy
楹联讲究平仄对偶，与文学、金石学、文字学及书法艺术的关系非常密切，在有清一代，盛极一时。
The guest should fill in the luggage and deposit every content in the card correctly while depositting the luggage , and keep the second line of a couplet of luggage check properly
客人寄存行李时应正确填写行李寄存牌中的各项内容，并妥善保存行李牌下联。