solitary
adjective uk/ˈsɒl.ɪ.tər.i/ us/ˈsɑː.lə.ter.i/
C2 独自的，唯一的，单个的
A solitary person or thing is the only person or thing in a place.
On the hill, a solitary figure was busy chopping down trees. 山上，有个人正忙着砍树。
In the distance was a solitary building. 远处是一座孤零零的建筑。
He was a solitary child (= he enjoyed being alone). 他是个喜欢独处的小孩。
C2 独自做的，独自完成的
done alone
solitary walks by the river 独自沿着河岸散步
fishing and other solitary pastimes 钓鱼和其他单独一人的消遣