The painted murals in the Dunhuang Grottoes along the ancient Silk Road in China form the world's longest painted corridor, with a total of 45,000 square metres of painted murals.

中国丝绸古道上的敦煌莫高窟内的壁画是世界最长的石窟画廊。 窟内有壁画45,000余平方米。

Grottoes fly this fall complain.

残叶飞花今秋怨。

People have disclosed a secret in Dunhuang grottoes .

人们还在敦煌石窟发现这样一个秘密。

After the Sui and Tang Dynasties Longmen Grottoes only.

隋唐以后的龙门石窟才出现。

It is also among the earliest excavated Chinese grottoes.

它是我国早期开凿的石窟之一。