n.劇烈增加；脈沖修尖

動(dòng)詞peak的現(xiàn)在分詞形式.

The mountain peaks are covered with snow all year. 山頂上終年積雪。

We have a precipitous climb to the peak. 我們向著陡峭山頂攀登。

Tourism is at its peak in August. 旅游業(yè)在八月份達(dá)到高峰。

The business cycle is a series of peaks and troughs. 商業(yè)周期就是淡旺期交替。

adj.發(fā)言的；能說的；能說明問題的；栩栩如生的

動(dòng)詞speak的現(xiàn)在分詞.

adj.說本族語的；講本國(guó)話的

v.證明（某事物）；表示；預(yù)示