【文题展示】阅读下面的文字,根据要求作文。关,《词典》说是古代在交通险要或边境出入的地方设置的守卫处所,如函谷关、玉门关,一夫当关,万夫莫开。在现代,又出现了对进出口货物查验并征税的海关,关,又用来比喻一段不易度过 [Topic display] read the following text, according to the requirements of composition. Off, the “dictionary” is the ancient guarding the premises set in places where traffic is critical or at the border, such as the Huan Valley Pass, Yumen Pass, Yifu Danguan and Wan Fu Mo. In the modern era, customs and customs clearances on the import and export goods have also appeared, which are also used to describe an area that is not easy to spend