C. fast attack, fast release, long hold time.

快启动，快释放，长保持时间。

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When the time comes to drop its weapons, the wings could sweep back and telescope down to a shorter length, preparing the craft for a fast attack run.

投弹时间一到，将机翼长度缩短并向后收起，方便飞机进行快速攻击。

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Researchers believe that HIV attack fast, there was no time even to the immune system defenseless Huanshou.

研究人员认为，艾滋病毒发动攻势之快，甚至让免疫系统来不及招架还手。

youdao

Researchers believe that HIV attack fast, there was no time even to the immune system defenseless Huanshou.

研究人员认为，艾滋病毒发动攻势之快，甚至让免疫系统来不及招架还手。

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