把劳力士的表芯换成石英驱动的可能让它的准确度提高一点点，但毁掉了这个而品牌的奢侈品形象。
Swapping out the guts of a Rolex for a quartz movement might improve its accuracy a bit, but destroy the brand's luxury image.
教师应具备教学言语修养。教师言语修养首先应做到言之有物、言之有情、言之有新；其次是做到准确而精炼、通俗而生动，富有逻辑性和形象性。
A teacher should have teaching speech cultivation, which means speech with contents, feelings and freshness, while being exact but precise, simple but vivid, full of logic and images.
教师应具备教学言语修养。教师言语修养首先应做到言之有物、言之有情、言之有新；其次是做到准确而精炼、通俗而生动，富有逻辑性和形象性。
A teacher should have teaching speech cultivation, which means speech with contents, feelings and freshness, while being exact but precise, simple but vivid, full of logic and images.
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