尽管北约的公共关系军官还在散布"早安越南"式的荒谬而乐观的战争新闻，其实西方的势力现在正处于被动防守之势。
Western forces are on the defensive, in spite of all the ludicrously cheery war bulletins – shades of Good Morning Vietnam - from NATO public relations officers.
迁飞昆虫以被动的随气流散布方式，获得对环境的主动适应。
Thus, the migratory insect gets the initiative adaptation to the environment by using a passive mode, the dispersion directed by air current.
迁飞昆虫以被动的随气流散布方式，获得对环境的主动适应。
Thus, the migratory insect gets the initiative adaptation to the environment by using a passive mode, the dispersion directed by air current.
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