In the past 20 years, the researches in the field of ESL writing have made great progress.
在过去的20年中，在英语作为第二语言写作领域中的研究取得了长足的进步。
On the basis of what the authors understand, they review some conditions of the earthquake prediction researches in the late 20 years of the 20th century in Japan.
基于所了解的情况，对20世纪最后20年日本地震预报研究的一些情况进行了回顾。
The researches on pheromones of stored-product insects during recent 20 years and more are reviewed in this paper.
本文综述了近20余年来仓储物害虫信息素的研究结果，。
应用推荐