1. cardiac arrest： 心跳停止.
2. cardiopulmonary（adj）：of, relating to, or affecting the heart and lungs(心肺的).
3. grubby(adj): dirty; slovenly.
Synonyms：messy, filthy.
Example：His friend to the north, Paul Kagame, is another authoritarian with grubby hands, feted nonetheless.
4. Sevenfold（adj/adv）：(adj) comprising seven parts or members.
seven times as great or as much.
(adv) until seven times as many or as great.
Example:He who kills another and hides the body shall pay a sevenfold fine and have seven blood-avengers.
5. GE healthcare : 通用电气医疗集团.
Siemens:西门子.
Medtronic:美敦力医疗产品公司.
6. wearable(adj/n) : (adj) capable of being worn; appropriate, suitable, or ready for wearing.
relating to or noting a computer or advanced electronic device that is incorporated into an accessory worn on the body or an item of clothing: wearable gadgets embedded in fabric.
(n) Usually, wearables. something that may be worn or carried on the body, as an item of clothing.
Example: The wearable computer is yet another gadget in the open- ended development that unites evolution and revolution.
7. deride(v): to laugh at in scorn or contempt; scoff or jeer at; mock.
Synonyms: taunt, flout, gibe, banter, rally.
Example: I am angry with all those in France who jumped at the occasion to deride the American justice system, and America in general.
8. backdrop(n/v): the background of an event; setting.
Synonym：scenery
Example: Parliament is not just the backdrop to the Palliser novels but really their subject
9. hedge(n)：(n) a row of bushes or small trees planted close together, especially when forming a fence or boundary; hedgerow.（篱笆）
(v) to enclose with or separate by a hedge.
Synonyms: evade, stall.
Example：Eventually he found a place from which he could see through a gap in the hedge.
hedge fund： 对冲基金.
10. ultrasound(n) :Physics. sound with a frequency greater than 20,000 Hz, approximately the upper limit of human hearing.（超声）
Example: I had just felt her move a few hours (6hours) before my ultrasound.
11.mammogram(n) : an x-ray photograph obtained by mammography(乳房X光摄影术）.
Example： “We get sidetracked by efforts to focus on getting every woman a mammogram,” she recently told The Daily Beast.
12. spell（n/v）： a word, phrase, or form of words supposed to have magic power; charm; incantation.（咒语）
Example: The spell was written by a previous owner of the textbook, the self-dubbed Half-Blood Prince.
Synonyms: while, bit, piece.
13. concussion (n) : Pathology. injury to the brain or spinal cord due to jarring from a blow, fall, or the like.(脑震荡）
Example: Never mind that a CAT scan taken after the incident confirmed that he had suffered a concussion.
Synonyms: injury, shock.
14. mole(n) : a spy who becomes part of and works from within the ranks of an enemy governmental staff or intelligence agency.
Example: She was briefly outed by Red as a mole and then allowed to recede into the background again.
Synonym：spy.
15. contraceptive(adj/n): (adj) tending or serving to prevent conception or impregnation.（避孕的）
(n):a contraceptive device, drug, foam
Example: In fact, 54 percent of women who had abortions had used a contraceptive method, if incorrectly, in the month they got pregnant.
Synonyms: condom, pill.
16. menopause (n): the period of permanent cessation of menstruation, usually occurring between the ages of 45 and 55.(更年期，绝经期）.
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Synonym: midlife crisis.
Example: The results held even after controlling for differences in persistence of symptoms, as well as age and type of menopause.
17.onerous(adj) : burdensome, oppressive, or troublesome; causing hardship.（费力的）
Synonyms: heavy, crushing, grievous; irksome, galling.
Example: The pair had argued, and the assistant ceased performing this most onerous of duties.
18.cavalier(adj/n): (n) a horseman, especially a mounted soldier; knight.(骑士，漫不经心的）
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a man escorting a woman or acting as her partner in dancing.
(adj): haughty, disdainful, or supercilious.
Synonyms: indifferent, offhand, uncaring, thoughtless, condescending.