Meaning of zhì shǎo:
zhì shǎo
至少
Adverb
at least; (to say the) least
Wǒmen zhìshǎo xūyào sān gè rén cái néng wánchéng zhège rènwù.
我们至少需要三个人才能完成这个任务。
We need at least three people to complete this task.
Wǒ měitiān zhìshǎo hē bā bēi shuǐ.
我每天至少喝八杯水。
I drink at least eight glasses of water every day.