valve

n.阀门；活塞

valetudinarian, valian, valiant, valiantly, valid, validate, validation, validity, valise, Valium, valley, valorous, valour (US valor), valuable, valuables, valuation, value, value oneself on, valued, valueless, van, vanguard, vanilla, vanish, vanished, vanity, vanquish, vanquished, vapid, vapor, vaporize, vaporous, vapour, variability, variable, variance, variant, variation, variations, varied,