He trudged home feeling lonely and let down.
他步履艱難地往家走，感到孤獨(dú)而沮喪。
She felt lonely and hopeless.
她感到孤獨(dú)絕望。
I don't get lonely now because I make the effort to see people.
我現(xiàn)在不覺得孤獨(dú)了，因?yàn)槲覈L試著與人交往。
They often have a lonely and solitary life to lead.
他們常常過一種獨(dú)居的孤獨(dú)生活。
I would imagine she's quite lonely living on her own.
我猜想她一個(gè)人過肯定很孤獨(dú)。