bù jiàn
不见不散
bú jiàn bú sàn
Be there or be square / Don't leave until we meet
这孩子一年不见，竟长得这么高了。
zhè háizi yì nián bú jiàn, jìng zhǎng de zhème gāo le
This child has grown so tall after not seeing them for a year
我的笔刚才还在，怎么转眼就不见了？
wǒ de bǐ gāngcái hái zài, zěnme zhuǎnyǎn jiù bú jiàn le?
My pen was just here, how did it disappear in the blink of an eye?