Teenagers are especially self-conscious and need the confidence that comes from achieving success and knowing that their accomplishments are admired by others.
譯文:
青少年自我意識特別強,他們需要自信,而自信源于獲得成功,并且知道自己的成就為他人所佩服。
點睛:
are...self-conscious和 need the confidence...為句子的并列謂語部分。