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
    部長級會議 ministerial meeting
    不正當(dāng)競爭 unfair competition
    不正當(dāng)競選 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