美国国家天气气象局的报道陈述说，地球磁暴通常持续24至48小时——但是个别能持续几天时间。
Geomagnetic storms usually last 24 to 48 hours — but some could last for many days, read a statement from the us National Weather Service.
筷子就是一个简简单单工作着的生活的例子，述说着其实我们不需要一直前进着、提高着和总是花所有的时间盯着某件事物上。
Chopsticks are a living example that simplicity simply works, and we don't need to keep developing, improving and fixing things all the time.
但是电影只能在有限的时间里述说故事，通常是两个小时。
But a movie needs to display the story in the limited period of time, usually about two hours.
到目前为止，课堂时间都被用于讲座，对教学读物进行阐述说明，但学生本来可以提前完成这项工作。
Until recently, classroom time could be used to provide a lecture meant to elucidate the readings students would have done beforehand.
到目前为止，课堂时间都被用于讲座，对教学读物进行阐述说明，但学生本来可以提前完成这项工作。
Until recently, classroom time could be used to provide a lecture meant to elucidate the readings students would have done beforehand.
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