英語文献の翻訳に困っています。だれか助けて下さい。
Adolescence is a period of advancement to adulthood. There is no clear point at which one can say that the adolescent has changed to man or woman. As with all biological phenomena, and most psychological changed, there is a process going on that involves barely perceptible changes from one day to the next. Often parents do not realize how quickly the changes are in fact taking place, however, until someone who has not seen the adolescent for a few months comments on the remarkable growth in height, or change in voice (in both males and females), or onset of other visible signs of maturity , some of which are sexual.
Adolescent girls may worry about the size of their breasts-too small or too large, depending on the current fad-and boys about the size of their penis-“too small”, usually, but occasionally “too large.” Disuse, incidentally, does not cause the penis to atrophy, nor does frequent use make it larger(Katchadourian,1997).
