pinnacle

n.尖塔，尖顶，山峰；(喻)顶峰

pinch, pinchbeck, pinched, pincushion, pine, pine-cone, pine-needle, pineal, pineal gland, pineapple, ping, ping-pong, pinion, pink, pink gin, pink-eye, pinkie (also pinky), pinking shears (also pinking scissors), pinkish, pinnace, pinnate, pinny, pinpoint, pinprick, pins and needles, pint, pint-sized, pinto, pioneer, pioneering, pious, piously, piousness, pip, pip-squeak, pipal (also peepul), pipe, pipe-cleaner, pipe-dream, pipeclay,