Chinese phrase
可以换一个〜吗？ ké yǐ huàn yí gè 〜 ma
Meaning
Could I exchange it for another ___?
When to use it
A polite way to ask to exchange an item for another one. It is common in shops or restaurants when the first item is not suitable.
Example dialogue
这杯咖啡太甜，可以换一个少糖的吗？ zhè bēi kā fēi tài tián ké yǐ huàn yí gè shǎo táng de ma
This coffee is too sweet. Could I exchange it for one with less sugar?
没问题，我去给您重新调一杯。 méi wèn tí wǒ qù gěi nín chóng xīn tiáo yì bēi
No problem, I will make you a fresh one with less sugar.