英语词汇“not once or twice”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	not once or twice
释义	not once or twice 基本例句 adj.屡次常常用作形容词Frequent failures did not affect his morale.屡次失败都没有使他泄气。 From time to time, scientists have speculated that the proton and electron charges might not be exactly equal in magnitude.屡次地，科学家们推究质子与电子的电荷大小可能不恰好相等。
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