These front-line defences are backed up by armoured units in reserve.

前线防御有后备装甲部队的支援。

《柯林斯英汉双解大词典》

There he hit the front pages in his own right; he was captured by the Boers while accompanying a scouting expedition on an armoured train.

他凭借自己的能力登上了报纸头版；他跟随侦察探险队乘坐装甲列车前进，被布尔人所俘获。

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These two squadrons, with a mix of soldiers from the Life Guards and the Blues and Royals, have an 25 armoured 26 reconnaissance role, driving into the front line in Scimitar armoured vehicles.

这两个骑兵中队集合了来自皇家近卫骑兵团以及布鲁斯和皇家骑兵团的士兵，他们要驾驶弯刀式装甲车奔赴前线执行装甲侦探任务。

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