Yabla video uses of 留存

所以 suǒyǐ
那些 nàxiē
huā
zhuān
如果 rúguǒ
zài
zhè
yuè
nèi
没有人 méiyǒurén
yào
留存 liúcún
它们 tāmen
So if no one came to pickup those flower tiles they would be gone after a month.