The second auxiliary constructor accepts just a label .
第二个辅助构造函数只接受一个标签。
Alongside income tax is a schedule of national-insurance contributions ( nics ) , ostensibly a social-insurance levy but in reality an auxiliary wage tax .
与所得税情况相同的还有国民保险税，它表面上是一项社会保险税，但实际上是一项附属工资所得税。
Personal income taxes sit alongside employee national-insurance contributions-once a social-insurance levy , now an auxiliary wage tax .
个人所得税向来和员工国民保险税（曾是社会保险课税，现在是附属的工资税）共同出现。
However , they can 't pass arguments to the parent class constructor ( even literal values ) , so traits can only extend classes that have a no-argument primary or auxiliary constructor .
