Usage priority
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
自足的；不需要外部支持的；本身完整的。
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自足的；不需要外部支持的；本身完整的。；自成体系的,独立的；指人自我封闭,沉默寡言。；镇定自若的,能自控的；沉默寡言的
Not requiring external or additional support; complete in itself.
the university is like a self-contained city with shops and all amenities
这所大学就像一个自成一体的城市,商店和各种设施一应俱全。
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自足的；不需要外部支持的；本身完整的。
Not requiring external or additional support; complete in itself.
自成体系的,独立的
constituting a complete and independent unit in and of itself
指人自我封闭,沉默寡言。
Of a person, wrapped up in oneself; reserved.
镇定自若的,能自控的
in full control of your faculties
more self-contained and more dependable than many of the early frontiersmen
比许多早期拓荒者更自立、更可靠。
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发长 /eɪ/ 音 (如 rain, wait)
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Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
Dictionary facts from ECDICT, WIKTIONARY.