As for sightseeing, there's little time for that during their studies at the Olympics, but the students are welcome to stay for a bit on their own afterwards - if,of course, they are not worn out.

VOA: standard.2010.02.26

The plan was to stay for a year or two, and then go back to Canada, and I lost track of time.

本来的计划是待一两年，然后就回多伦多，但是计划打乱了。

麻省理工公开课 - 固态化学导论课程节选

The plan was to stay for a year or two, and then go back to Canada, and I lost track of time.

本来的计划是待一两年，然后就回多伦多，但是计划打乱了。

麻省理工公开课 - 固态化学导论课程节选