| 单词 | 计算器是工具 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔crutch〕The calculator is a tool, not a crutch; yet it is increasingly being used as a crutch by many children.计算器是工具, 不是拐杖, 可是现在很多孩子越来越依赖它。外研社新世纪〔crutch〕The calculator is a tool, not a crutch; yet it is increasingly being used as a crutch by many children.计算器是工具，不是拐杖，可是现在很多孩子越来越依赖它。柯林斯高阶 |
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