It is commonplace for snipers to open fire on aid convoys.
狙击手向救援车队开火的事情很常见。

Recently, several aid convoys have been attacked in Darfur.
最近，有数个援助车队在达尔富尔遭到袭击。

Attacks on humanitarian workers and aid convoys are exceptionally deplorable.
攻击人道主义工作人员和援助车队的事件特别令人痛心。

Weather hampered the air convoys.
天气不利于空运。

But ambushes of convoys of security men are certainly taking place.
但是保安人员对车队的伏击是肯定发生的。

Even convoys escorted by the police are attacked by groups of armed men.
甚至连警察护卫的车队也遭到一些武装分子的袭击。

The division was strung out in long convoys that were struggling to move at speed over the atrocious Russian road network.
这个师在俄国恶劣的交通网上排开了很长的队伍进行追击。

The Commission notes that civilian convoys have repeatedly been the target of military attacks.
委员会注意到，平民车队屡次成为军事袭击的目标。

Otherwise it must detach units to preserve signal and road communications, protect dumps and convoys.
否则必须派遣部队去维持秩序和交通，保护仓库和运输。

Our convoys are being continually harassed by enemy submarines.
我方护航舰队正遭到敌方潜艇的频繁袭击。

on the convoys, saving time if the truck breaks down.
如果卡车故障就可以节约时间了