Meaning of bù bì:
bù bì
不必
Adverb
need not; does not have to; not necessarily
Nǐ bùbì dānxīn.
你不必担心。
You need not worry.
Míngtiān nǐ bùbì lái kāihuì.
明天你不必来开会。
You don't have to come to the meeting tomorrow.
Nǐ bùbì dānxīn zhè jiàn shì, yīnwèi wǒ yǐjīng jiějué le.
你不必担心这件事,因为我已经解决了。
You don't have to worry about this matter because I have already solved it.