(bǐ) used as phonetic bi- or pi-
(bǐlè) Perak (state of Malaysia)
(bǐdìng) pyridine C5H5N
(bǐlāxītǎn) piracetam (loanword); see 乙酰胺吡咯烷酮[yi3 xian1 an4 bi3 luo4 wan2 tong2]