有疗效的

But given the repeat of the very problem that two years of retooling was supposed to resolve, the verdict is necessarily mixed.

但时经两年的重新调整，原本以为已经解决的问题再度出现，现在要下个定论真不是件容易的事。

Features and advantages of your products is that you attract new customers the biggest bright spot.

你的产品特点和优势是你吸引新客户的最大亮点。