She lives alone and often feels lonely.

她孑然一身，常感到寂寞。

《牛津词典》

They feel irritable and depressed, often isolated and lonely.

他们感到烦躁和抑郁，经常感到孤立和孤独。

youdao

More than one-fifth of adults in both the United States and Britain said in a 2018 survey that they often or always feel lonely.

在2018年的一项调查中，超过五分之一的美国和英国成年人表示，他们经常或总是感到孤独。

youdao

Katharine was often lonely.

VOA: special.2009.04.26

He and other researchers attempted to show how often people felt lonely.

VOA: special.2009.12.22

Lonely people are often mistrustful of others.

VOA: special.2009.12.22

They rule the small and often lonely realm of Innovation Island.

FORBES: Keep Your Company From Colonizing Innovation Island

William Rehnquist, the chief justice, has fought a long and often lonely battle to roll back what he sees as the overextension of federal power, a subject which is also a hobby horse of many Republican politicians.

ECONOMIST: The Supreme Court

You feel lonely very often.

BBC: Q&A: Chinese dating consultant Zhou Xiaopeng