目前，关于交往活动学习的研究还只是处于探索阶段，还没有系统化的研究。

At present, the study on communicative activity learning is only at the exploratory stage, there is no systematic study.

youdao

这意味着，如果在2050年前没有系统化的改变，该地区将面临水资源供小于求的极度危险。

This means that the area is at extremely high risk for water demand exceeding supply by 2050 if no major systematic changes are made.

youdao

然而产权交易法律仍没有系统化、完整化，在交易主体、交易程序、交易监管方面仍存在一些缺陷。

But the laws of transactions of property right has not still melted systematizedly and completely, some defects still exist in transactions subject, procedure and supervision.

youdao

That means it was something I didn't understand. So I'm going to be cautious and systematic.

这就意味着代码中有一些,我没有理解的东西，因此我需要谨慎,并且系统化的去寻找这个错误。

麻省理工公开课 - 计算机科学及编程导论课程节选