机动舰队

例句：

1. 1. The navy's main battleship is a symbol of the nation's strength.
   海军的主要战舰是国家力量的象征。
2. 2. The military has been training for months to prepare for the imminent invasion.
   军队已经训练了数月，为即将到来的入侵做准备。
3. 3. The aircraft carrier was a key element in the naval strategy.
   航空母舰是海军战略的关键组成部分。