哈,你真大方。这种情况下,实在没零钱就别给了,不用打肿脸充胖子。
hā ,nǐ zhēn dàfang 。zhèzhǒng qíngkuàng xià ,shíshì méi língqián jiù bié gěi le ,bùyòng dǎzhǒngliǎn chōngpàngzi 。
Ha, you're really generous. In this situation, if you don't have change then you don't need to give anything. There's no need to put on airs.