n. trouble; misfortune 不幸；灾难
It was Mona's strength in adversity that helped the shipwrecked crew survive until help came.
同义词：affliction; misery; calamity
v. to refer to 谈及
In explaining Lenin's communist thinking, the professor adverted to the philosophers Marx and Engels.
adj. 1. opposed 反对的 2. loath嫌恶的
Paul was averse to letting the nurse even approach him with the injection needle in her hand.
同义词：1. objecting 2. disinclined; antipathetic
adj. familiar 精通的；熟悉的
At her family reunion, Nina was quite surprised her husband was so conversant with her family tree.
n. transportation; vehicle 运输；交通工具
What mode of conveyance would you recommend for traveling through Europe?
v. to declare that someone is guilty 判罪
Richard was convicted of embezzling hundreds of thousands of dollars from the company.
adj. flippy; gay 快乐的；欢乐的
The wedding banquet was a convivial occasion enjoyed by everyone in attendance.
同义词：vivacious; jocund; merry
adj. 1. roundabout 迂回的 2. not straightforward 不正当的
To lose his pursuers, Harry took the most devious route he could to reach his hideout.
同义词：1. circuitous;tortuous 2. underhand; tortuous
n. difference; variety 不同；多样
A defining attribute of American society is the ethnic diversity of its members.
v. to show 表现；表明
It was rare to see a child so young evince a great talent for painting.
同义词：indicate; display; demonstrate
v. to produce without preparation 即席而作
Robin Williams is noted for his ability to improvise during any performance.
n. one who is interested in his own thoughts and feelings 内向的人
Most introverts prefer to be alone or with small groups of friends rather than with large crowds of people.
adj. likely to cause ill-feeling 令人反感的；招嫉妒的
Throughout history, few positions have been quite so invidious as that of the tax collector.
v. unconquerable 不可征服的
Despite all the troops' efforts to take the fort, the enemy forces were truly invincible.
同义词：impregnable; inexpugnable; undefeatable
v. to get rid of; to prevent 排除；防止
Recycling efforts can help obviate waste management problems of overcrowded cities in the future.
adj. stubborn; intractable 顽固的；任性的
His perverse insistence on immaculate cleanliness in the office annoyed workers who insisted on a more comfortable environment.
反义词：docile; yielding; obedient
n. 1. turning from right to wrong 曲解 2. corruption 堕落
The cult leader used his perversion of Christian scripture as doctrine for his group to follow.
同义词：1. distortion 2. depravity
adj. allowing passage through; accepting of 能透过的；能接纳的
Young children's minds are pervious to the violence and consumerism they see every day on the television.
adj. foreseeing; providing for future needs 预知的；有远虑的
Donald's provident preparation of a tornado shelter saved his family's lives when a twister hit his neighborhood.
n. 1. complete change in one's principles, etc. 变节 2. evasion 规避
Kelley's tergiversation prompted her to quit her political party and join a labor group.
v. to travel across 横过
Dog-drawn sleds were used by the explorers to traverse the ice fields with their equipment.
adj. able to exist; workable 能生存的；行得通的
I am afraid your plan is not viable because we do not have the funds available to sustain it.
n. food 食物
For truly delicious viand, you should ask Ryan to bake you one of his wonderful cakes.
adj. fanciful 幻想的；空想的
His paintings were of visionary worlds, populated by imaginary creatures.
同义词：quixotic; chimerical; imaginary
adj. lively; high-spirited 活泼的；快活的
Polly's vivacious personality never fails to brighten up a room.
同义词：animated; cheerful; jolly