1. PLease download the audio as your preview material for words and expressions.
2. Useful words
1. await: vt. (fml.)
wait for sth. 等待；等候
The little boy was still awaiting his father’s return when the clock struck 11. 当时钟敲响 11 点时，那个小男孩仍在等着他爸爸回来。
2) if sth. awaits you, it will happen to you（某事）将降临到…身上
The biggest surprise awaiting the girl is that her father is flying home for her birthday. 那个女孩即将等到的最大惊喜是她爸爸将飞回家来为她庆祝生日。
2. efficiency
n. the quality of doing sth. well and effectively, without wasting time, money, or energy 效率，效能
We must place greater focus on combat, encourage innovation, build systems, increase efficacy and efficiency, and further military-civilian integration.
更加注重聚焦实战，更加注重创新驱动，更加注重体系建设，更加注重集约高效，更加注重军民融合，实现党在新时代的强军目标。
——中国共产党第十九次全国代表大会报告
efficient
a. doing sth. well and thoroughly with no waste of time, money, or energy
效率高的，有能力的
We will promote a revolution in energy production and consumption, and build an energy sector that is clean, low-carbon, safe, and efficient.
推进能源生产和消费革命，构建清洁低碳、安全高效的能源体系。
——中国共产党第十九次全国代表大会报告
efficiently adv. in a way that achieves maximum productivity with minimum wasted effort or expense 效率高地，有能力地
We should draw on the achievements of other civilizations, develop a set of institutions that are well conceived, fully built, procedure based, and efficiently functioning, and do full justice to the strengths of China’s socialist system.
吸收人类文明有益成果，构建系统完备、科学规范、运行有效的制度体系，充分发挥我国社会主义制度优越性。
——中国共产党第十九次全国代表大会报告
3. free of / from
not containing or involving sth. unpleasant 无…的，摆脱了…的
We will strengthen deterrence so officials don’t dare to, strengthen the cage of institutions so they’re unable to, and strengthen their vigilance so they have no desire to commit acts of corruption. Our political environment will, through tireless efforts, like seas fallen calm and rivers running clear, be clean and free of corruption.
强化不敢腐的震慑，扎牢不能腐的笼子，增强不想腐的自觉，通过不懈努力换来海晏河清、朗朗乾坤。
——中国共产党第十九次全国代表大会报告
4.embarrassment
n. 1) [C] sb. or sth. that causes problems or makes you feel ashamed 让人难堪的人；使人为难的事
2) [U] a feeling of being nervous or ashamed because of what people know or think about you 尴尬；难堪；窘迫
5.blade
n. the flat cutting part of a tool or weapon 刀刃，刀片
Disciplinary inspections have cut like a blade through corruption and misconduct; they have covered every Party committee in all departments at the central and provincial levels.
巡视利剑作用彰显，实现中央和省级党委巡视全覆盖。
——中国共产党第十九次全国代表大会报告6. polish
n. [C, U] a substance used when rubbing a surface to make it smooth and shiny 上光剂；擦光剂；亮光剂
The girl was told by her parents to remove the polish from her nails because she was too young for make-up.
女孩的父母让她把指甲油卸掉，因为她还太小，不宜化妆。
vt. 1) make sth. smooth, bright, and shiny by rubbing it 擦亮；擦光
He polished his glasses with a handkerchief in order to see more clearly.他用手帕擦了擦眼镜，以便看得更清楚些。
2) improve a piece of writing, a speech, etc. by making slight changes to it before it is completely finished 修改；润色
Your essay is good; you just need to polish it a bit. 你的文章写得不错，只要稍加润色就可以了。
7. match
v. 1) belong to the same pair （与…）属同一双；（使）成对
Your socks don’t match: One is red, and the other is orange. 你的袜子不成对，一只红色，另一只是橙色的。
2) if one thing matches another or they match, they look attractive together（与…）相配，相称
She wore a blue silk dress and a blue hat to match. 她穿了一条蓝色真丝连衣裙，戴着与之相配的蓝色帽子。
★ mismatched: a. not matched or not suitably matched 不配对的
I wonder why my younger sister loves wearing mismatched earrings instead of identical pairs. 我不明白，为什么我妹妹喜欢戴不配对的耳环，而不是左右一样的耳环。
8. content
n. (~s) [pl.]
1) the things that are inside a box, bag, room, etc. 所容纳之物；内容
I emptied the contents of the fridge into boxes. 我把冰箱里的东西清理到了盒子里。
2) the things that are written in a letter, book, etc. （信、书等的）内容
She kept the contents of the letter a secret , so nobody knew what it said. 她对这封信的内容秘而不宣 , 所以无人知晓信里到底写了什么。
3. Practical phrases and functional patterns
