19. Mount，本身表示加大，常用分詞形式，延伸出來的增加、拓展、集聚等詞都可以用 mount 來譯。

　　國內經濟下行壓力持續(xù)加大

　　Downward pressure on China’s economy has continued to mount

　　新興市場國家和發(fā)展中國家風險和挑戰(zhàn)不斷集聚

　　To the emerging markets and developing world in general, risks and challenges continue to mount

　　20. Era 本身是時代，漢譯英時常用來翻譯“新形勢”、“新時期”、“新紀元”等詞。

　　制定了新時期西藏工作的指導思想和特殊優(yōu)惠政策

　　decided on guiding principles for the work in Tibet in the new era and issued favorable policies for Tibet’s development

　　新中國成立和阿拉伯國家相繼獨立，開創(chuàng)了中阿友好交往的新紀元。

　　The founding of the People’s Republic of China and the independence of Arab countries created a new era for China-Arab friendly exchanges.

　　21. Decide on，主要替換“制定”等詞。

　　If you decide on something or decide upon something, you choose it from two or more possibilities.

　　作出決定

　　Denikin held a staff meeting to decide on the next strategic objective.

　　德尼金召開了員工大會為下一步的戰(zhàn)略目標作出決定。