有时她必须备课或批阅我们的卷子直至深夜。
Sometimes she has to prepare the lesson and read our test paper till late at night.
他们在一张空织布机上不停地工作直至深夜。
They went on with their work at the empty loom until late into the night.
如果话真如此，那也应该算得上里约人狂欢直至深夜的一个原因吧。
If so that should also count as another reason for wild partying deep into the Rio night.
多年来，范德·梅尔先生一直在进行运动粒子在加速器中的统计学特性的研究：有时，直至深夜，有时，陷入沉思。
For years on end Mr Van der Meer made a study of the statistical properties of the motion of particles in accelerators: sometimes late into the night, and sometimes lost in deep reflection.
多年来，范德·梅尔先生一直在进行运动粒子在加速器中的统计学特性的研究：有时，直至深夜，有时，陷入沉思。
For years on end Mr Van der Meer made a study of the statistical properties of the motion of particles in accelerators: sometimes late into the night, and sometimes lost in deep reflection.
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