我遇到的困难 The Difficulty I Face

Two days ago, when I was shopping with my friends, we saw a foreigner having some problems with the shop assistant. They couldn’t communicate well, because the assistant did not understand English well. I wished I could help the foreigner to solve the problem, but my English was not good enough. So I must study hard to master the international language well.
两天前，当我和朋友在购物的时候，我们看到一个外国人与店员有一些争议。他们无法进行交流，因为店员不懂英语。我希望我能帮助外国人解决问题，但是我的英语不够好，所以我必须努力学习，掌握好国际语言。