Adolescence is the period of transition between childhood and adulthood.

春期是童与之间的过渡期。

A critical task of adulthood is establishing one's sexual orientation as heterosexual, gay, lesbian, bisexual, or transgendered.

步入的关键之一是确立自己的性取向：异性恋、男同性恋、女同性恋、双性恋或者是变性的。