Meaning of pèng qiǎo:
pèng qiǎo
碰巧
Adverb
by chance; by coincidence; to happen to
Wǒ pèngqiǎo zài jiē shàng yùdào le lǎo péngyǒu.
我碰巧在街上遇到了老朋友。
I happened to run into an old friend on the street.
Wǒ jīntiān pèngqiǎo yùdào le yīgè lǎo péngyǒu.
我今天碰巧遇到了一个老朋友。
By coincidence, I ran into an old friend today.
Wǒ chū mén de shíhòu pèngqiǎo yù dào le lǎo péngyǒu.
我出门的时候碰巧遇到了老朋友。
I happened to run into an old friend when I went out.