介词短语是英语语法中常见的状语，由介词和其后的名词、代词或动名词构成，用于修饰动词、形容词或副词，表示时间、地点、方式等含义。例如，“他每天步行去学校”，“她早早地到达了机场”，“婴儿正在婴儿床里睡觉”等。理解介词短语的用法可以帮助更准确和流利地表达思想和想法。
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He walks to school every day. (他每天步行去学校。)
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She arrived at the airport early. (她早早地到达了机场。)
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The baby is sleeping in the crib. (婴儿正在婴儿床里睡觉。)
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She spoke with confidence during the presentation. (她在演讲中非常自信地讲话。)
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The dog ran through the park chasing a ball. (狗追着球在公园里奔跑。)
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He studied for the exam all night. (他整晚都在为考试学习。)
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The flowers bloomed in the spring. (花在春天开放。)
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We waited for the bus at the bus stop. (我们在公交车站等待公交车。)
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The bird flew over the mountains. (鸟飞过了山脉。)
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She cooked the meal with care. (她认真地做了这顿饭菜。)
