Or they could have gone exploring on their own and
lost their way back to the group.(P12, Ex.2)或许他们独自去探 险回来时迷了路。
3.on one's own 独自地,独立地(=by oneself/alone)
典例 You can't expect her to do it all on her own. 你不能指望她完全独立地做好这件事。 运用 完成句子
I had to go to the cinema ______________________ ( 独 自 地 )
because all the other boys were busy.
on my own/by myself/alone