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

快启动，快释放，长保持时间。

youdao

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。

youdao

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。

youdao