Broker，当中间人去促成…vt

COPs are gatherings that are intense technical negotiations brokered by the UN.

be legally bound to do sth被受法律要求做某事

The police（注意the police是复数名词）are legally bound to catch thieves.

Oblige sb to do sth使某人有义务做某事

A new school regulation obliges teachers to take out all the waste in the classroom after their class.

intent可以作名词，和intention的意思一样；fall short=fail to meet an expectation or standard.未达成（目标或标准），合起来是vi

While his intent to get a higher band score in his next IELTS exam is clear, his progress overall falls short of his expectations.

Groundbreaking=pioneering开创性的（对比breakthrough突破，可数）

His groundbreaking discovery is a huge breakthrough in the field of chemistry.

moral compromises道德上的妥协

Statesmen（政治家）sometimes have to choose from evils and moral compromises in messy conflicts.

注意treacherous和strenuous的区别，前者是“背叛的”，后者是“奋力的、顽强的”

I’ve never seen a treacherous person like him.

I’ve never seen a strenuous person like him.

Strongman= a leader who rules by the exercise of threats, force， or violence.

This country is ruled by a succession of military strongmen who erased dissent（异议，不可数）and killed dissidents（持不同政见者，可数）.

shuttle diplomacy, 穿梭外交，也就是指一个局外人在冲突的双方之间来回沟通斡旋的一种外交形式，shuttle 指往返穿梭，vi，或者指“使…往返穿梭”，vt都可

He shuttles between two towns to juggle his work and family life.

His work is shuttling passengers to and from the airport.

accord相当于deal，协议，可数（in accord with 和...一致）；peace accords和平协议

His shuttle diplomacy sets the stage for future peace accords between these two conflicting countries.

sought-after= in great demand, usually because it is rare or of very good quality.被广泛欢迎的

Joe’s particular way of learning English is widely sought-after by English learners in China.

You want to leave your country better off than you found it and that’s nothing in private life you can do that’s as interesting and as fulfilling.

Millions saw the apple fall, but Newton asked why.确实最好多鼓励自己保持好奇，保持追问。