He gave me detailed instructions on how to get there.
他详细地告诉我如何去那里。
Do you know how to form the past tense?
你知道怎样构成过去时吗？
She knows how to make life miserable for her employees.
她知道如何整治她的雇员。
Ask me if you're not sure how to do it.
你要是拿不准怎么干，就问我。
He's still learning how to dance.
他仍在学怎样跳舞。