逆境
逆境可用suffering, hardship和adversity三個字。
suffering既countable也可uncountable，通常指對很多人造成的逆境，能指自然災害造成的逆境，動詞cause和形容詞unnecessary是suffering的常見搭配詞。
Reporters described the suffering they had seen in the war zone. (Longman Activator)
The earthquake has caused massive damage and a great deal of human suffering. (Longman Activator)
May we play our small part in helping to alleviate the poverty and suffering of the world. (Longman Corpus)
They are both accused of fourteen offences of causing unnecessary suffering to animals. (Longman Corpus)
hardship既countable也可uncountable，通常指個別的人面對的逆境，能指經濟困難或生活困難，動詞suffer, cause, face, experience, endure和形容詞economic, financial, great, physical, undue是hardship的常見搭配詞。
Many people are suffering economic hardship. (COBUILD Dictionary)
Many students suffer financial hardship. (Longman Activator)
an economic policy that caused great hardship for many people (Longman Dictionary)
During the war we faced many hardships. (Longman Activator)
The two men endured great hardship during their trek across Antarctica. (Oxford Dictionary)
A slave might not be ill-treated or subjected to undue hardship. (Longman Corpus)
adversity既countable也可uncountable，通常指運氣不好帶來的逆境，使用頻率低於suffering和hardship。in the face of adversity是固定片語，解面臨逆境。
She somehow manages to keep laughing in the face of adversity. (Longman Activator)
He overcame many personal adversities. (Oxford Dictionary)
最後，與市民共渡時艱=ease the public's burden/share the hard times with the community