这只红毛猩猩用长长的胳膊轻松地从一棵树荡到另一棵树上。

The ___orang-utan swung effortlessly from tree to tree using its long arms.

他笨拙地爬上树的样子让他获得了‘猩猩’的绰号。

His clumsy way of climbing trees earned him the nickname '___orang-utan'.