Ann: Tom, you tied a nice necktie.
Tom: Of course, I have practised it for several years.
Ann: You tied it well, you should pay attention to the tightness at the same time, or it may cause serious consequence.
Tom: Serious consequence? You talked nonsense.
Ann: I didn’t talk nonsense, I read a piece of news yesterday, it said that someone has been myopia because of tying the necktie.
我可没胡说，我昨天看了篇新闻，有个人就是因为系领带系出近视眼。
Tom: Really? I should untie the necktie right now.
Ann: Wait, let me have a look…you didn’t tie it tautly,but it should be looser.
等等，我帮你看看…你系地不是很紧，但还得稍微松点。
Tom: Does that guy become myopia caused by tying the necktie tautly?
Ann: Yeah, due to tying tautly, it will repress the arteria carotis and nerve, restrict blood flow normally,make the brain to suffer limitations of nutrition supplying，cause nerve damage.
是的，由于他系得太紧，会压迫颈动脉和神经，阻碍人体正常血液流通，致使大脑正常营养供给受限，引起神经受损。
Tom: My god, it is awful, I should pay more attention to it.
