他对自己的体重非常敏感/容易辩解。

He's very ___defensive about his weight.

受到批评时，她以一种戒备/防卫的方式回应。

When criticized, she reacted in a ___defensive manner.

她那防备的态度使得坦诚对话变得困难。

Her ___defensive attitude made it hard to have an honest conversation.