形容词
中文翻译：额外的
同义词：
['additional', 'augmented', 'supplementary']
例句：
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1. The extra workload has been a challenge for the team.
额外的工作负担对团队来说是一大挑战。
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2. Extra care is needed when preparing the food.
准备食物时需要额外小心。
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3. The company decided to offer an extra discount for customers who bought more than one item.
公司决定为购买多于一件商品的顾客提供额外折扣。