At the back of one shelf was a strong wooden box.

在一个书架后面放着个硬木箱。

Yes. But it came in a very strong box and he said it was in perfect condition.

是啊。不过电脑装在非常坚固的箱子里，而且他说电脑完好无损。

What? - Hardly anything left of the place, except a strongbox. A VERY strong box, and inside it was this.

什么？-那地方几乎全被炸毁，除了这保险箱。真是个非常保险的保险箱，里面是这个。

And Lheureux drew from his strong box the receipt for eighteen hundred francs that she had given him when Vincart had discounted the bills.

于是勒合从保险柜里拿出一张一千八百法郎的收据来，那是贴现给万萨尔的时候，她写下的借条。

A " safe" is a strong box or place – could be a room, even – where you keep things that are valuable.

“保险箱” 是一个坚固的盒子或地方——可以是一个房间，甚至——用来存放贵重物品的地方。

At the back of one shelf was a strong wooden box. I broke it open and found， to my surprise，some fuses and several small square packets of explosive.

屋里放着好多东西。在一个书架上有火柴，我点着火柴，更仔细地观察着。在一个书架后面放着个硬木箱。我把箱子打开，出乎我的意料，里面有导火索和若干方形包装的炸药。