1.depend heavily on 嚴重依賴
Health systems in a number of high-income countries depend heavily on doctors and nurses who have been trained abroad.
若干高收入國家的衛生系統嚴重依賴在國外接受培訓的醫生和護士。

2.senior fellow 高級研究員
Gary Clyde Hufbauer is the Reginald Jones senior fellow at the Peterson Institute for International Economics.
蓋里-克萊德-胡弗鮑爾是彼得森國際經濟學學院雷金納德-瓊斯的高級研究員。

3.gain access to 可以獲得
Poor nations meanwhile could gain access to low-carbon technology which they could not otherwise afford.
與此同時，貧窮國家也可以獲得低碳技術，否則它們將負擔不起。

4.collaborate with 與...合作
Will you collaborate with me to finish the project?
你會和我合作完成這個項目嗎？