如有需要，我们可以将截止日期再延长一周。
Should the need arise, we can extend the deadline by another week.
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should英 /ʃʊd/|美 /ʃʊd/
need英 /niːd/|美 /nid/
解释
'Should the need arise' 是名词短语作主语的倒装条件，三重括号分别覆盖 modal、冠词和名词主语，展示主语为多词短语时的倒装。
Should the need arise, we can extend the deadline by another week.
'Should the need arise' 是名词短语作主语的倒装条件，三重括号分别覆盖 modal、冠词和名词主语，展示主语为多词短语时的倒装。