Chinese phrase
推荐信需要〜吗？ tuī jiàn xìn xū yào 〜 ma
Meaning
Does the letter of recommendation have to be written in ___?
When to use it
Asks whether something is required. This polite question checks a rule or condition.
Example dialogue
推荐信需要用英语写吗？ tuī jiàn xìn xū yào yòng yīng yǔ xiě ma
Does the letter of recommendation have to be written in English?
不用，中文或英文都可以，但国际项目是英文更好。 bú yòng zhōng wén huò yīng wén dōu ké yǐ dàn guó jì xiàng mù shì yīng wén gèng hǎo
No, Chinese or English is fine, but English is better for international programs.