我们在边境上进行了一次巡逻，训练一些年轻士兵，对他们做了指点。
We had a patrol out on the border, breaking in some young soldiers, showing them the ropes.
这些部队鲜少处于行动的中心：在阿富汗，他们留驻于相对平静的北方；在黎巴嫩，他们则在海上巡逻，而不是在陆地上。
These troops have rarely been at the center of the action: in Afghanistan, they stay in the relatively calm north; in Lebanon, they patrol at sea, not on land.
在人力不足的情况下，新加坡正转而使用机器人来减少公园巡逻所需的人力，并提醒人们他们可能给自己和别人带来风险。
Without enough manpower, Singapore is turning to robotics to reduce the manpower required for park patrols and remind people about the risks they may be putting themselves and others in.
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