开一个银行账户是个好主意。

It would be a good idea to open a ___bank ___account.

今天早上我把钱存入了我的银行账户。

I deposited the money into my ___bank ___account this morning.

那个男人，名字我记不清了，写了一封看起来很严肃的信息，其中他[谈到]向一个瑞士银行账户转账。

The man, whose name I can't remember, wrote a serious-looking message in which he [talked about] a money transfer to a Swiss ___bank ___account.