| 单词 | indispensable |
| 释义 | indispensable [ˌɪn.dɪ'spent.sə.bl] adjective ■Something or someone that is indispensable is so good or important that you could not manage without them 必不可少的，必需的 •This book is an indispensable resource for researchers.这本书是研究人员必不可少的资料。 •His long experience at the United Nations makes him indispensable to |
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