不好意思bù hǎo yì si
to feel embarrassed, to be ill at ease不如bù rú
not equal to, not as good as不安bù ān
unpeaceful, unstable, uneasy不得了bù dé liǎo
desperately serious, disastrous不必bù bì
need not, does not have to不断bù duàn
unceasing, uninterrupted, continuous不然bù rán
not so, no, or else, otherwise不耐烦bù nài fán
impatience, impatient不要紧bù yào jǐn
unimportant, not serious不见得bù jiàn de
not necessarily, not likely