Chinese phrase
成绩〜是多久？ chéng jì 〜 shì duō jiǔ
Meaning
How long is ___ valid?
When to use it
Asks how long a score or result remains valid. It is a simple way to ask about a validity period.
Example dialogue
申请材料上写的 成绩 有效期 是多久？ shēn qǐng cái liào shàng xiě de chéng jì yǒu xiào qī shì duō jiǔ
How long is the score listed in the application materials valid?
一般是两年，但有的学校要求三年之内。 yì bān shì liǎng nián dàn yǒu de xué xiào yāo qiú sān nián zhī nèi
It is usually valid for two years, but some schools require the score to be no more than three years old.