act independently and with the initiative in one's own hands

after one’s own heart

at one’s own expenses

at one’s own risk

based on our own country

beef in own juice

blow one’s own horn

blow one’s own trumpet

Bombyx own cytoplasmic polyhedrosis virus

BOO build-operate-own

BOOM build-operate-own-maintain

BOOT build-operate-own- transfer

Build， Own， Operate， Transfer (“BOOT”)

burn one‘s own way of retreat and be determined to fight to the end

business on one’s own

buy back its own shares

by one's own efforts

call one’s soul one’s own

China’s own innovation

code， own