volcano
n. 火山
1.The eruption of a volcano is spontaneous.
火山的爆发是自发的。
2.The volcano is very much alive.
这座火山极其活跃。
widespread
adj. 分布广的; 普遍的, 广泛的
1.English is a widespread language.
英语是一种很普及的语言。
2.The high cost of the machine prohibit its widespread use.
这机器价格昂贵，很难普及使用。
3.Widespread flooding is affecting large areas of China。
洪水泛滥，淹没了中国的广大地区。
worthwhile
adj. 值得的, 值钱的, 有价值的
1.The teacher recommended some really worthwhile novels to his students.
老师推荐给学生一些真正有价值的小说。
2.Do you consider it worthwhile for zhouzhenglong to do this?
你认为周正龙做这件事值得吗？
3.Nothing worthwhile can be accomplished by fits and starts.
凭一时高兴，什么也做不好。
abundant
adj. 大量的, 充足的
搭配：be abundant in sth. ...丰富，富于...
同根：redundant 多余的，过剩的
1.Rainfall is abundant in the region.
该地区降雨丰沛。
2.The dictionary is abundant in sunny words, healthy words and happy words.
词典含有大量表达乐观、健康和快活的词。
3.They'll transmute the abundant raw materials into finished products.
他们将把丰富的原料变为成品。
