谁能帮我翻译一下：an ass in a lion 's skin（本人要写暑假作业,急用!Please!)

披着狮皮的驴－－－－伊索寓言An ass once found a lion's skin. He put it on, and walked towards the village.; All fled when he came near,both men and animals. The ass felt quite proud. He lifted his voi...