名词
中文翻译：银行存单
同义词：
['bank draft', 'bank note', "banker's draft"]
例句：
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1. He bought a bank certificate for his savings account.
他为他的储蓄账户买了一张银行存单。
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2. The bank issued a new bank certificate to the company.
银行向该公司发行了新的银行存单。
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3. The bank certificate was used as collateral for the loan.
银行存单作为贷款的抵押物。