今天阳光明媚,春风拂面,同学们兴高采烈地跟着老师到中山植物园春游。欣赏过千奇百怪的珍稀植物,大家来到了桥的世界。桥世界里的桥五花八门,令人大开眼界,瞧,这个铁索桥系由一根铁索组成的,要不是旁边有根保护绳,我想谁也不敢轻易挑战它的;再看旁边的同心桥,这是由两根铁链组成的,要想挑战它,必须要两个人同心协力,每 Sunny today, the spring breeze, students happily followed the teacher to Zhongshan Botanical Garden Spring Tour. Appreciate all kinds of rare plants, we came to the bridge of the world. Bridge in the bridge in a wide variety of bridges, it is an eye-opener, see, this is composed of a cable tie, if not next to a root protection rope, I think no one can easily challenge it; look next to the concentric bridge , Which is composed of two chains, in order to challenge it, we must make concerted efforts of two people, each