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gēng xīn huàn dài
idiom. replace the old by/with the new
Discussion of 更新换代/更新換代
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Hi we have added two examples for this entry:
智能手机更新换代的速度越来越快。 [phr] Smart phones are being upgraded at a speed that is faster and faster.
同时我们要培养学生的自学能力，以适应现代科技高速的更新换代。 [phr] Meanwhile, we should cultivate students' ability to learn by their ow, so that they can be adapt to the rapid renovation of modern scientific technologies.
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