2. increase=go up=rise=grow=climb=gain=escalate=pick up=widen=be on the increase=intensify=expand=build up 上升，增加 v.
3. teach=educate=train=coach=instruct=bring up 教学 v.
4. more than one language=bilingual=sb's second language 多种语言 n.
5. determine=establish=identify=pinpoint=diagnose 决定 v.
6. young people=teenager=youth=in your teens=adolescent=minor 年轻人 n.
7. community=all the people in a particular area, city, country etc.群体，团体，社区 n.
8. traditional=old-fashioned=outdated=outmoded=unfashionable 传统的 adj.
9. fail=failure=not succeed=unsuccessful=vain=fruitless=unproductive=be a failure=go wrong=not work=do no good=fall through 失败 v.
10. endanger=to put someone or something in danger of being hurt=damaged=destroyed 危及，使危险 v.
11. diverse=varied=variety=wide-ranging=mixed 各种各样的 adj.
12. inevitable=certain to happen and impossible to avoid 不可避免的 adj.
13. differ from=unusual 与…不同 v.
14. reluctant=unwilling=not willing=drag your feet=be loath to do something=conservative 勉强的 adj.
15. consult=ask somebody's advice=seek advice=get/obtain advice 资询 v.
16. alternative=another=other=different=new=else=variation=variant 另一个
17. therapist=someone who has been trained to give a particular form of treatment for physical or mental illness 临床医学家 n.
18. retrain=taking courses 再教育 v.
19. salary=pay=wage=income=earnings=fee 工资，收入 n.
20. long-term=chronic=long-running=long-standing=lasting=lifelong=prolonged=lingering=endur ing=abiding=incurable 长期的 adj.
21. complaint=complain=make a complaint=protest=object=complain 抱怨 n.
22. illness=disease=virus=bug=infection 疾病 n.
23. connection=relationship=link=correlation 联系 n.
24. beneficial=be good for you/ do somebody good=wholesome=nutritious=nourishing=healthful 有益的 adj.
25. insight=comprehension=understanding 理解，见解 n.
26. physical=relating to the body=bodily 身体的 adj.
27. hazard=risk=danger=threat 障碍，危险 n.
28. accompany=with=together=along with=come wit 陪伴,伴随
29. mental=relating to the health or state of someone's mind 精神上的，心理的 adj.
30. possible=possibility=can=potential=there is a chance/possibility 可能的 adj.
31. reduction=decrease=drop=fall=cut 减少 n.
32. class=type=kind=sort=style=category=variety 种类 n.
33. rehearsal=practice=training=run-through=exercise 排练，演习 n.
34.peer=your peers are the people who are the same age as you, or who have the
same type of job, social class etc 同伴 n.
35. defensive=used or intended to protect someone or something against attack 防御 n.
36. strategy=way=method=approach=technique=system=tactics 方法，功略 n.
37. assist=help=aid=with the aid of 帮助 v.
38. specific=give (somebody) more details=expand on=enlarge on=go into more=greater detail=be more specific=be more explicit=elaborate 特定的 adj.
39. substance=a particular type of solid, liquid, or gas 物质 n.
40. surroundings=environment=circumstance 环境 n.
41. engage=give somebody a job=employ=take on=appoint=recruit=sign up 雇佣 v.
42. combine=mix=stir=beat=blend=whisk=dilute 联合 v.
43. survival=the state of continuing to live or exist 幸存 n.
