名词
中文翻译：沉重的承诺
同义词：
['burdensome', 'burdening例句：1. The onerous task of organizing the conference left me exhausted by the end of the day.（组织会议的繁重任务让我在一天结束时筋疲力尽。）']
例句：
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1. The onerous task of organizing the conference left me exhausted by the end of the day.
组织会议的繁重任务让我在一天结束时筋疲力尽。
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2.The onerous convenant of keeping secrets from our friends was a constant source of tension between us.
对我们朋友保密的沉重承诺一直是我们之间紧张关系的根源。
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3.Despite the onerous convenant of maintaining confidentiality, they still managed to leak sensitive information.
尽管有保持机密的沉重承诺，他们还是泄露了敏感信息。