常用的千进制符号，我觉得很有用，至少有好几个是我不知道的。

Common symbols, I think that was very useful, at least several, I do not know.

youdao

这问题不是很好回答，但有一件事我觉得很有用，那就是从事那些积极进取的活动。

Well, there is no easy answer, but one thing I've found that works pretty well is to promote incompatible behavior.

youdao

插件，如果你不希望这个指南就删除或关闭它，即使我想有些人可能会觉得很有用的。

Mods, if you dont want this guide just delete or close it, even if i think some people may find it usefull.

youdao

Here he is in his paper and says at that time I decided that it was advantageous to find a more general system of the elements and here is my attempt.

他在论文中说，当时,我觉得发现更多,的元素的通用系统是很有用的,这就是我的计划。

麻省理工公开课 - 固态化学导论课程节选

And I thought it would be useful And I thought it would be useful to have to have opportunities to work with students opportunities to work with students about the issues about the issues outside the classroom outside the classroom that might either inform or impede that might either inform or impede their development their development as scholars.

我觉得，如果有机会与学生交流,我觉得一个有用的办法,会很有益,是创造机会和学生们一起处理,与他们讨论课外的问题,课外一些可能会影响或阻碍,这些问题可能促进或者阻碍,他们作为学者的发展的问题。

普林斯顿公开课 - 人性课程节选

It's just very hard. So I think that that's helped a lot.

这很难，所以我觉得这个方法很有用。

斯坦福公开课 - 戴尔CEO-Michael.Dell谈创业和发展课程节选