副词
中文翻译：一直
同义词：
['throughout', 'all the time例句：1. She has been working hard all along.（她一直很努力工作。）']
例句：
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1. She has been working hard all along.
她一直很努力工作。
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2.He was all along a good friend of mine.
他一直是我的朋友。
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3. They have been studying all along for the exam.
他们一直在为考试努力学习。