notion concept idea 概念
characteristic feature 特征
be characteristic of be typical of 是.所特有的
difficult hard tough 困难的
area field 领域
area region 区域
final last 最后的
diploma certificate 证书
pleasing satisfactory 令人满意的
wish hope 希望
massive extensive a mass of -- plentiful大量的
conference meeting会议
close intimate -- near亲密的
link connect 连接
explore investigate 调查
propose suggest advise -- recommend 建议
cater for meet satisfy 满足
provide supply furnish 提供
unite combine join 联合， 合并
come across run into meet 遇到
appealing attractive --fascinating 吸引人的
appeal to -- tempt attract fascinate 吸引
instruct teach 教授
private personal 私人的
vanish disappear 消失