Let us create a small Python file that defines a type we can persist to the database.

下面创建一个很小的Python文件，其中定义一个可持久化到数据库中的类型。

youdao

The Center regrets that, as the cause of freedom in Lithuania has been steadily undermined by Moscow, the belief seems to persist among the small cadre of decision-makers in the Bush Administration that a "linkage-free" policy toward the Soviet Union can be successfully pursued.

CENTERFORSECURITYPOLICY: Center for Security Policy | The Bush Administration��s Response To Repression: US Concessions On Gatt Membership

She said the government would prosecute the small number of employers who persist in refusing to pay the minimum wage.

BBC: NEWS | UK | Politics | PM press conference: At a glance

Though GM held the largest overall U.S. market share in 2010, it had the smallest share (8.4%) of the small car market, which is where the demand will be if high gas prices persist.

FORBES: Obama's GM Quagmire