| 单词 | usefulness |
| 释义 | usefulness n[U]: The old car has outlived its usefulness, ie is no longer useful or worth keeping. 这辆旧汽车已经不能用了. |

英汉双解词典包含38652条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。
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| 单词 | usefulness |
| 释义 | usefulness n[U]: The old car has outlived its usefulness, ie is no longer useful or worth keeping. 这辆旧汽车已经不能用了. |

英汉双解词典包含38652条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。