发音上齿轻触下唇声带震动单词value valley vanvary vast veryvisit voice voteabove arrive believedrive expensive fivegive have improvelive love movedevelop even everlevel never overservice seven travel句子The sea is very vast.I love you forever. There is a van in the valley.The travel service is good.It is very expensive to drive there.同音[v]vain vein vice visevile vailvail veil辨音[v] [f]van fanvat fatvast fastvile filevery ferryleave leaflive lifesave safebelieve beliefprove proof[v] [b]vat batvan banveer beervote boatvent bentvery buryvid bidvolt boltvroom broom