16. Momentous 看着很面熟，但是意思是“重大的”

If you refer to a decision, event, or change as momentous, you mean that it is very important, often because of the effects that it will have in the future.

坚持国际法治是中国基于自身经历做出的郑重选择。
Upholding international rule of law is a momentous choice China has made based on its own experience.

2014 年 5 月 CATTI 英语三级笔译实务也考到了这个词：

This could be momentous for Greenland, which has long relied on half a billion dollars a year in welfare payments from Denmark, its parent state.

17. Uphold 维护，常用来表示“坚持”

我们要继续坚持对台工作大政方针，坚持“九二共识”政治基础，坚决反对“台独”分裂活动
We will remain committed to our major policies on Taiwan, uphold the 1992 Consensus as the political foundation, resolutely oppose separatist activities for the independence of Taiwan

必须全面深化改革，坚持和完善基本经济制度
We must deepen reform across the board, uphold and improve the basic economic system

18. Encroach on 侵犯

If one thing encroaches on another, the first thing spreads or becomes stronger, and slowly begins to restrict the power, range, or effectiveness of the second thing. 

The new institutions do not encroach on political power.
这些新机构没有侵犯到政治权力。

更不能罔顾客观公正，借“法治”之名，行侵害他国权益之实。
Still less should they encroach on the rights and interests of other countries under the pretext of “the rule of law” in total disregard of objectivity and fairness.

这些问题中，有的牵涉复杂的部门利益，有的在思想认识上难以统一，有的要触动一些人的奶酪
Some of these problems involve an array of departmental interests, for some it will be difficult to reach consensus, and some will encroach on certain people’s interests.