PIN invalid. Must be 4 digits.

密码无效。必须为4位数字。

youdao

Password: Enter the last 4 digits of the Social Security number or Tax I. d.

登入密码：请输入您的社会安全号码(税号)最后4位数字。

youdao

For each test case, output the answer in a line. Round to 4 digits after the decimal point.

每个测试案例，输出答案。小数后有4个小数点。

youdao

A staggering 8.4 million jobs have been lost and the unemployment rate remains near double digits.

VOA: standard.2010.03.16

But at what cost? A year after the president took office,unemployment has reached double digits and the nation's deficit hit a record $1.4 trillion.

VOA: standard.2010.01.15