1.We reached a beautiful grotto, whose entrance was almost hiden by the vine.

1.我到达了一个美丽的洞穴,洞的进口藤蔓遮掩著。

2.The particulates have more acidic pollutants with strong acidity and have the corrodibility to grottoes.

2.细粒子中有较多的酸性污染物并比粗粒子酸性强,这些细粒子对石窟有侵作用。

3.The development of technology and improvement of test methods are the hopes for solving the periodization of grottoes.

3.科学技术的发展、科学测定方法的进步和完善，是解决石窟分期问题的希望所在。

4.Flying acrobats and a lone beribboned female dancer recalled the grottos of Dunhuang, painted in the Wei and Tang dynasties when camel caravans plied the Silk Road.

4.飞（叫做会飞的杂技演员……）和一个穿丝绸独舞的女性舞蹈演员展示了墩煌壁画，它绘画于魏唐朝代，当骆驼运载着货物通过丝绸之路。