1. initiative=on your own/by yourself=independently=on your own initiative=under your own steam=to be the person who starts something=plan=law主动的，自发的adj. 主动权n.
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=sbs 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 traditional=old-fashioned=outdated=outmoded=unfashionable传统的adj.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.