技术就像一把刀：我们可以用它切割食物，也可以用它去杀人。
Technology is like a knife: we can use it to cut our food, and we can also use it to kill somebody.
如图所示，食物，诸如大块切割肉或包装产品，放在传送带上，置于电子束下。
As shown in this diagram, food, such as large cuts of meat or packaged products, is placed on a conveyor belt under the electron beam.
披萨刀上锋利的转轮可以轻松切割各种食物。
The sharp wheel on a pizza cutter makes cutting through all kinds of other foods a breeze.
我知道美国人(用餐刀)切割他们的食物，然后把刀搁在盘子一边。他们再把餐叉挪到右手边，接着就像动物般狼吞虎咽。
I know the Americans cut up their food and then leave the knife hanging on the side of the plate while they move the fork to their right hand and dig in like animals.
我知道美国人(用餐刀)切割他们的食物，然后把刀搁在盘子一边。他们再把餐叉挪到右手边，接着就像动物般狼吞虎咽。
I know the Americans cut up their food and then leave the knife hanging on the side of the plate while they move the fork to their right hand and dig in like animals.
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