unofficially
adv. 非正式地；非公认地
例句
Some workers are legally employed, but the majority work unofficially with neither health insurance nor wage security.
一些工人合法受雇用，但大多数人是非正式的，既没有健康保险，也没有工资保障。
《柯林斯英汉双解大词典》
Officially or unofficially?
官方的还是非官方的？
Agreed, officially and unofficially.
官方的和非官方的说法一样了。
