3 sentences

1. 他在花旗银行办理了信用卡。

   tā zài huā​qí yín​háng bàn​lǐ le xìn​yòng​kǎ.

   He applied for a credit card at Citibank.

   Source: Dong Chinese Dictionary

2. 花旗参是一种产于美国的西洋参。

   huā​qí shēn shì yī zhǒng chǎn yú Měi​guó de Xī​yáng shēn.

   American ginseng is a type of ginseng produced in the United States.

   Source: Dong Chinese Dictionary

3. 旧时人们常称美国的星条旗为花旗。

   jiù​shí rén​men cháng chēng Měi​guó de xīng​tiáo​qí wéi huā​qí.

   In the past, people often referred to the American flag as the 'Flowery Flag'.

   Source: Dong Chinese Dictionary