spec

n (idm 习语) on `spec (infml 口) as a speculation or gamble, without being sure of obtaining what one wants 碰运气: I went to the concert on spec: I hadn't booked a seat. 我去听音乐会是碰运气, 因为没预订座位.

spatially, spatter, spatula, spawn, spay, speak, speak for, speak of, speak up, speak volume for, speak volumes, speak well for, speak-easy, speaker, speaking, speaking clock, spear, spear gun, spearhead, spearmint, special, special agent, Special Branch, special constable, special delivery, special licence, special pleading, special school, special student, specialise, specialist, speciality, specialization, specialization, specialisation, specialize, specialize, specialise, specialized, specialized, specialised, specially, specially-made,