useful 和 valuable 必须是在 牛津高阶英汉双解词典 上的英文解释

useful 和 valuable 必须是在 牛津高阶英汉双解词典 上的英文解释 valuable worth和valuable的区别 Useful Sentences和Useful Sentences什么意思? This magazine is of great ____ to the students of chemistry.(valuable value important useful) expensive和valuable和precious的区别 precious和valuable的区别.请勿复制! rewarding和valuable有什么区别? useful, useful useless和useful的用法. be useful to和be useful for的区别 be useful to和be useful for的区别? Of all these kinds of money,only one is still _______in this country.CA.valuable B.present C.current D.useful (What useful) information you gave us last week括号里还有what a useful和 how useful和 how useful an 什么是Valuable valuable是什么意思? valuable是什么意思