The children are beginning to adolesce around the age of 12.儿童在12岁左右开始进入青春期....

v.进入青春期，如青春期少年般行事，成长...

adolesce的音标：adolesce的英式发音音标为：[ædə'les]adolesce的美式发音音标为：[ædə'les]...