defensive汉语翻译：
a. 防卫的, 防备用的, 自卫的
n. 守势, 防卫姿势, 防卫物
【医】 防御的词型变化：
名词:defensiveness副词:defen-sively英语解释：
名词 defensive:

an attitude of defensiveness (especially in the phrase `on the defensive')同义词：defensive attitude

形容词 defensive:

intended or appropriate for defending against or deterring aggression or attack

attempting to justify or defend in speech or writing同义词：justificative, justificatory

serving as or appropriate for defending or protecting

例句：

Our troops took up defensive positions on high ground overlooking the river.我部队在临河高地上占据了防御阵地。

When asked to explain her behavior, she gave a very defensive answer.当问她为什么要这样做时，她极力为自己辩护。

She's very defensive about her part in the affair.她极力掩盖她在此事中充当的角色。

详细解释：
de.fen.sive
adj.（形容词）
Intended or appropriate for defending; protective.
保护的，防御的：为保卫而设计的或适于保卫的；保护的
Intended to withstand or deter aggression or attack:
防御性的，自卫的：预期能耐得住进攻的或能阻止进攻的：
例句：
a defensive weapons system; defensive behavior.
防御性的武器系统；防卫行为
Sports Of or relating to the effort to prevent an opponent from gaining points in a game or an athletic contest.
【体育运动】 防守的：指在球赛或体育竞赛中，努力阻止对方得分的
Of or relating to defense.
关于保卫的
Psychology Constantly protecting oneself from criticism, exposure of one`s shortcomings, or other real or perceived threats to the ego.
【心理学】 自我保护的，自卫的：不断地保护自己，使自我不受批评，不暴露自己的短处或不受其它真的或可察觉的事威胁自我的
n.（名词）
A means of defense.
防御工具，防御手段
An attitude or position of defense.
防御的态度或守势
<习惯用语>on the defensive
Prepared to withstand or counter aggression or attack.
处于守势：随时准备防御或对入侵和进攻进行反击
【引伸】
defen.sively
adv.（副词）
defen.siveness
n.（名词）