名词
中文翻译：Unknown
同义词：
['burden', 'trouble', 'difficulty', 'sin', 'responsibility']
例句：
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1. He felt agreat burden on his shoulders because of the unexpected expenses.
由于意外支出，他感到肩上有重大的负担。
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2. The company faced many difficulties in its operations.
该公司在运营中面临许多困难。
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3. She felt guilty about her actions and was burdened with guilt.
她对自己的行为感到内疚，并为此感到负担。