他对自己的体重非常敏感防备。

He's very ___defensive about his weight.

当他的价值观受到挑战时，他以一种防备的方式反应。

He reacted in a ___defensive way when his values were challenged.

当她的观点受到质疑时，她变得防备起来。

She became ___defensive when her opinions were questioned.