阅读下面漫画，简要说明其内容，并谈谈你对漫画内涵的理解。要求内容完整，表述准确，语言连贯，不超过60个字。
漫画中有两只风筝，一只风筝有线控制，飞得又高又稳，另一只断了线即将坠落地上。这说明必要的约束也是一种保护。
回答问题(简答)。
Lucy is my good friend. She is eleven years old. She is a student. She likes singing. She has a nail pet. Her name is Kitty. Look, Lucy's singing and the cat is dancing. Lucy wants to be a singer when she grows up.
Lucy's mother is a nurse. She works in a hospital. She likes shopping. She usually buys a lot of beautiful clothes at weekends.
下列各句中，划线的词语使用恰当的一项是（ ）
