1.The United Nations has launched an appeal to raise a whopping $4.2 billion in aid to help alleviate the humanitarian crisis in Yemen.
alleviate 缓和;减轻
Our proposed approach would help to alleviate this problem.
我们建议的方法将有助于缓解这一问题 。
2.It comes after the country has been ravaged by years of war and is on the brink of famine.
on the brink of 在...边缘
Their economy is teetering on the brink of collapse
他们的经济徘徊在崩溃的边缘 。