副词
中文翻译：应该
同义词：
['ought to', 'had to', 'should have', 'could have']
例句：
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1. Ishoulda taken my time and studied more.
我应该花更多时间学习。
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2. She shoulda known better than to trust that guy.
她本不应该信任那个家伙。
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3. He shoulda listened to his parents' advice.
他本应该听从父母的建议。