雅思写作常用词汇：峰值/最低值/超过

　　peak/top/tip/summit/crest/pinnacle/apex/zenith

　　- eg: Tourism is at its peak in August.;

　　bottom/foot/groud/nadir

　　- eg: The number of radio listeners declines rapidly, bottom out at 200 at 10 a.m.;

　　overtake/outnumber/exceed/surpass/outdo。