请把下面几个句子英译汉
问题描述：
请把下面几个句子英译汉
1 He called on some prospects but failed to make a sale
2 These products are of Chinese make
3 The factory manufactured five makes of tractors
答
1.他有过一些预想,但产品没有卖出去
2.产品是中国制造的
3.工厂生产五种拖拉机.
最后一句不太会翻.