n. advice; warning 劝诫；警告
The teacher's admonition of Carl's poor behavior during the class trip caused him terrible embarrassment.
n. science of operation and flight of aircraft 航空学
After flying in an airplane for the first time, my brother decided he wanted to study aeronautics.
v. to make explanatory notes 注解
After the students complained they were confused by their poetry assignment, the professor annotated the poem during class.
同义词：commentate; gloss; elucidate
v. to sail or fly around 环航
We took a scenic helicopter ride which circumnavigated the entire island in all its natural beauty.
adj. having the same origin; sharing many qualities 同源的；同性质的
The many cognate words in English and German make it easier for the speaker of one language to study the other.
n. suggested or implied meaning of a word 涵义；暗示
Although some words are not bad themselves, they can often have a bad connotation.
同义词：implication; suggestion; association
n. meaning; indication （明示的）意义；指示
The denotation of this word can be located in an unabridged dictionary.
adj. unchangeable 不变的
My old uncle has become immutable in his ways, and you know that you can't teach an old dog new tricks.
同义词：inflexible; constant; consistent
adj. inborn 天生的；固有的
Mozart's innate musical talent could be seen when he was only three years old.
同义词：congenital; inherent; intrinsic
adj. harmless 无害的
Although everyone was suspicious, the birthday card Sally sent Ian was friendly and innocuous.
n. introduction of something new 革新
David's innovation in his company's bicycle design was awarded by several manufacturing organizations.
adj. (of one's mind or idea) unhealthy 病态的
Richard's morbid thoughts of death repulsed his friends and frightened his family.
adj. dying; ending 将死的
The president of the moribund company made a final speech to his employees in the wake of the company's bankruptcy.
* in the wake of
n. undertaker 殡仪业者
The few people who wish to study to become morticians are usually those whose families have mortuary businesses.
v. to humiliate 使蒙羞
Nancy was mortifies that Harry had told everyone at the party that she had had plastic surgery.
* plastic surgery
n. funeral parlor 停尸处
The body disappeared from the mortuary the day before it was to be interred, and was never found.
n. change 变化；突变
The chemicals that farmers were dumping into the river caused mutations in the fish.
adj. beginning to grow or develop 初期的；发生中的
Although feminism is not completely novel in Asia, the women's movement here is still in its nascent stage.
adj. pertaining to ships or navigation 航海的
My uncle, an old sea captain, often used nautical words that I didn't understand.
n. beginner 新手
Although having been born in the so-called computer age, I am just a novice when it comes to using computers.
同义词：apprentice; neophyte; tyro
adj. harmful 有害的；有毒的
When scootering down the streets of Asian cities, you cannot help but breathe in noxious car fumes.
同义词：baneful; pernicious; poisonous
反义词：wholesome; innocuous; nontoxic
adj. nasty 令人讨厌的
James had the most obnoxious habit of constantly clearing his throat whenever I tried to make a point in our conversations.
adj. giving as warning 前兆的
A premonitory dream of waves of water crashing over the town warned the man that a typhoon was soon to hit their fishing village.
v. to restore to good condition; to repair 革新；修理
A huge budget was set aside by the government to renovate the old legislative building.
* set aside
v. to change shape or form 使变形
Constant trampling of snow boots and muddy car tires transmuted the white snow into dirty slush.