这树袋熊非常温顺和有趣.The koala bear is very [ ] and [ ].

这树袋熊非常温顺和有趣.The koala bear is very [ ] and [ ].
这树袋熊非常温顺和有趣.The koala bear is very [ ] and [ ].

这树袋熊非常温顺和有趣.The koala bear is very [ ] and [ ].
The koala bear is very 【docile】and 【interesting】
docile ['dəusail; 'dɔsəl]
adj.
1.易管教的,易控制的,易驾驭的；顺从的,温顺的,驯服的,驯良的；听话的
interesting
adj.有趣的；引起兴趣的,令人关注的

peaceable and fun

The koala bear is very gentle /docile/meek （温顺的）and interesting /amusing/diverting(有趣的)
你自己选择形容词吧，其实都可以的