_________ 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,___________。
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