英语词汇had proven useful怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	had proven useful
释义	proven adj — 经过验证的 adj • 证实的 adj useful adj — 有用 adj • 有益 adj • 有用的 adj • 好用 adj • 管用 adj • 顶事 adj have v — 有 v • 所有 v • 具有 v • 自有 v • 设有 v • 具备 v • 抱有 v • 占有 v prove v — 证明 v • 证实 v • 证明是 v • 结果是 v • 原来是 v • 显示 v prove — 证 • 着 • 说明 • 确证
随便看	pre-breeding pre-briefing pre-broadcast Pre-broken pre-budget pre-built pre-built components pre-built integrations pre-built libraries pre-built reports pre-built scripts Pre-bundled pre-calendering pre-calibrated pre-Cambrian pre-Cambrian, geological period before c. 540m years ago pre-Cambrian, geological period before C. 540m years ago pre-Cambrian, geological period before c. 540m years ago pre-Cambrian, geological period before c. 540m years ago precambrian rocks pre campaign Pre-cancellation precancerous cells precancerous lesions precarious

英汉双解词典包含2273206条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。

proven adj —