英语词汇“when/if the need arises”的翻译、意思、用法、释义-英汉双解词典-文摘网

单词	when/if the need arises
释义	when/if the need arises when/if the need arises → when/if the need arises at arise(1) when or if it is necessarywhen/if the need arises
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