Chinese phrase
〜需要保存多久？ 〜 xū yào bǎo cún duō jiǔ
Meaning
How long does ___ need to be stored?
When to use it
Asks how long something needs to be stored. It is used to ask about the storage period for a medicine, food, or other item.
Example dialogue
这瓶药需要保存多久？ zhè píng yào xū yào bǎo cún duō jiǔ
How long does this bottle of medicine need to be stored?
说明书上写着保质期到明年六月，按说明保存就可以了。 shuō míng shū shàng xiě zhe bǎo zhì qī dào míng nián liù yuè àn shuō míng bǎo cún jiù ké yǐ le
The instructions say the expiration date is next June, so it is fine to store it as directed.