拼音：shí yùn zé cún，bù yòng zé wáng
注音：ㄕˊㄩㄣˋㄗㄜˊㄩㄥˋㄗㄜˊㄨㄤˊ
解释：时：经常。原指铁针要经常使用，不用就要生锈，成为没用的东西。后指技术、知识越用越熟练、丰富，不使用就要生疏、遗忘。
出处：《荀子·赋篇》：“功业甚博，不见贤良。时用则存，不用则亡。”
Time: often. It originally means that the iron needle should be used frequently. If it is not used, it will rust and become useless. The latter refers to the more skilled and rich technology and knowledge are used, and they will be unfamiliar and forgotten if they are not used.
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