let down;wrong;fail to live up to;be unworthy of;betrayal ;

We must never be unworthy of our teachers'untiring and sincere teachings.
我们决不要辜负老师的谆谆教导.
来源:《现代汉英综合大词典》Stephen Chase had determined to live up to the expectations of the Company.
斯蒂芬·蔡斯决心不辜负公司的期望。
来源:《柯林斯高阶英汉双解学习词典》When I tell someone I will not betray his confidence I keep my word.
如果我告诉某人我不会辜负他的信任,我就会恪守诺言。
来源:《柯林斯高阶英汉双解学习词典》
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