1 However,… , just like anything else, has its negative side as well.

　　但是， 和其他事物一样，… 也有其不好的一面.

　　2 Of course , the disadvantages can not be ignored.

　　当然, 缺点也是不能忽视的。

　　3 However, … may also cause/bring about/lead to/result in/contribute to some problems.

　　但是，…… 也可能诱发一些问题。

　　4 However, it’s often blamed for its obvious defects.

　　但是，它经常因一些明显的缺陷而受到指责。

　　5 Everything has two sides, … is no exception.

　　每个事物都有两面性， …… 也不例外。