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。
