wèile / bǎozhàng / xuéshēng / ānquán / xuéxiào / zài / xiàoménkǒu / zēngshè / le / héngduànbùdào / hé / jǐngshìdēng

为了保障学生安全，学校在校门口增设了横断步道和警示灯。

To ensure student safety, the school added a pedestrian crossing and warning lights at the school entrance.