动词短语
中文翻译：升级
同义词：
['upgrade', 'elevate', "enhance例句：1. She's trading up from a basic model to a more luxurious one.（她从基础型号升级到更豪华的型号。）"]
例句：
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1. She's trading up from a basic model to a more luxurious one.
她从基础型号升级到更豪华的型号。
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2. The company is trading up its product line to meet the demands of the market.
该公司正在升级其产品线以适应市场需求。
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3. As she grew older, she traded up her wardrobe to match her newfound confidence.
随着年龄的增长，她升级了她的衣橱以匹配她新获得的信心。