I want to open an account with [ at ] a bank.

我想在一家银行开个 户.

《现代汉英综合大词典》

The company is going to open an account with another bank.

公司准备在另一家银行开户.

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We would like to open an account with you as principal to principal.

我们愿意与你方直接开立帐户.

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May I open an account with your bank?

我能在贵行开个账户 吗 ?

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You can open an account with the bank.

你可以在银行开个户.

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We are writing to you with a desire to open an account with you.

我们特此致函,以期与贵方建立联系.

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