But it was not until nineteen ninety-three that the problem was completely solved using corrective mirrors.

VOA: special.2009.09.30

for exam 2, you still need to know and understand everything you learned in exam 1, but you can put off learning it completely until we get through, at least, next Wednesday before we start maybe spending time on these concepts outside of class.

为了掌握第二次考试的内容，你仍然需要知道和理解,在第一次考试前所学的全部知识，但是你可以先放一放，等到我们进行到，至少在下周三我们可能开始不在课堂上,讲这些内容之前。

麻省理工公开课 - 化学原理课程节选

We shall continue to use it, until we completely destroy Japan's power to make war.

VOA: special.2009.06.14

But wait until the plants are completely dry before picking beans.

VOA: special.2009.03.24

These immigrants who tried to prove their family history to American officials this way were called paper sons. Immigration was not completely reopened until the Immigration Act of nineteen sixty-five.

VOA: special.2010.03.03

"For sure the military will not only clear and secure the area, but ensure unless and until the area is taken over completely by the civil administration, and the writ of the government is restored and peace and normalcy return to the area, the military will remain in the area,".

VOA: standard.2009.05.07