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短语
be essential to
释义
be essential to (某事物)所必需的;最重要的：Good health is essential to happiness，there will be nothing if there is no good health.身体健康是幸福所必需的，没有良好的健康就什么也谈不上。
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on tick
on time
on tippy-toe（或tippy-toes）
on tiptoe
on tiptoe / on (your) tiptoes
on tiptoe/tiptoes
on tiptoe（或tiptoes）（〈北美〉 亦作on one's tiptoes）
on to
on/to one side
On to (onto)
on top
on topic
on top of
on top of sb
on top of sth
on top of sth/sb
on top of the world
on/to the verge of sth/of doing sth
on track
on trial
on trust
on/under oath
on / under pain of death
on/under pain of sth
on/upon condition that
英语短语词组词典共收录525608条英汉双解短语词组词条，基本涵盖了全部常用短语词组的翻译及用法，是英语学习的有利工具。
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更新时间：2026/1/9 11:15:40