_________ is currently becoming a serve problem in China, which happen to ________. So long as ________, ___________ will always unsurprisingly ________.
Why does ________ become so rampant? First and foremost,__________. Secondly,_________. Last but not least, ________. As a consequence,___________.
________目前在中国成为一个发球局的问题，发生________。因此，只要________，___________将永远意料之中________。
________为什么变得如此猖獗？首先，__________。其次，_________。最后但并非最不重要的是，________。因此，___________。
