| 单词 | 作寿 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔working life〕The working life of most vehicles can be increased if they are serviced regularly.如果定期保养，大部分车辆的工作寿命都能延长。剑桥高阶The working life of most vehicles can be increased if they are serviced regularly.大部分车辆的预期工作寿命可以延长，如果它们受到定期保养的话。剑桥国际 |
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