1. Thousands of people are employed in the manufacture of shoes.
    制鞋工业雇用了成千上万的人。

2. Vipers (adders) and rattlesnakes manufacture the blood poison, which is known as haemolytic.
    蝰蛇(小蝰蛇)和响尾蛇产生血毒液, 这种毒液叫溶血素.

3. Vipers (adders) and rattlesnakes manufacture the blood poison, which is known as haemolytic.
    蝰蛇(小蝰蛇)和响尾蛇产生血毒液, 这种毒液叫溶血素.

4. Vipers (adders) and rattlesnakes manufacture the blood poison,
    蝰蛇（蝮蛇）和响尾蛇产生血液毒素，

5. Should people use it up to manufacture petrol for automobiles?
    难道人们应该为生产汽车用油而耗尽石油资源吗？