步行天橋 pedestrian overpass
不夜城 "sleepless city, ever-bright city"
不遺余力 spare no effort; go all out; do one's best
部長(zhǎng)級(jí)會(huì)議 ministerial meeting
不正當(dāng)競(jìng)爭(zhēng) unfair competition
不正當(dāng)競(jìng)選 illicit competition
不正之風(fēng) bad (harmful) practice; unhealthy tendency
步兵師 infantry division
不倒翁 tumbler; never-fall doll
不擴(kuò)散核武器條約 Treaty on the Non-Proliferation of Nuclear Weapons; NPT