The teams have run into various problems. Many of the training fields were never completed, forcing teams to share facilities and practice at uncomfortable hours.

VOA: standard.2009.11.05

Sometimes when correspondence is saved you run into these kinds of problems, so we have to guess a little bit at what she was looking at.

有时即使资料的确存在,可找不到麻烦就来了，因而，我只能去猜测她的大意了。

耶鲁公开课 - 1945年后的美国小说课程节选

If you can do this, you can do most of the problems you will run into.

如果你会做这个,那么你就能解决碰到的大部分题目了

耶鲁公开课 - 基础物理课程节选

If you go there on the third floor of Sloane, you may run into other people like you who are trying to work on problems.

当你到了斯隆实验室的三楼,你可能会碰上其他,和你一样正在解决难题的同学们

耶鲁公开课 - 基础物理课程节选