1·The problem arrises when you are trying to think about what you customers could want.
但是，当你试图搞清楚你的客户想要的是什么的时候，问题就来了。
2·The main products are: 65 manganese steel ball and oblate, eight arrises wait for all sorts of different ball;
其主要产品有：65锰钢球及扁圆，八棱等各种异型钢球；