Troops have been sent to protect aid workers against attack.
已经派出部队保护援助工作人员免遭袭击。
Aid groups say it is a race against time to find trapped survivors.
救援小组说，找到被困的幸存者好比在与时间赛跑。
We aid them in fighting against their enemy.
我们援助他们抗击敌人。
We aid them to fight against their enemy.
我们援助他们抗击敌人。
We aid them to fight against their enemy.
我们援助他们抗击敌人。
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