1. The United States is making a $2 billion pledge to COVAX, with the promise of an additional $2 billion to urge others to step up as well.
step up 增加(數(shù)量等);提高(速度、強(qiáng)度等)
He urged donors to step up their efforts to send aid to Somalia
他敦促各捐贈(zèng)方加快速度將援助物資送往索馬里
。2. Going forward, all countries should participate in a transparent and robust process for preventing and responding to health emergencies, so the world learns as much as possible as soon as possible.
as much as possible 盡量;盡可能多
I had to fall in with her wishes as much as possible.
我不得不盡量順從她的意愿
。