A student may not take an entrance test of the same grade more than once in the same track during any academic year.
学生一年内在同一系列入学考试不可多于一次。

The characteristics of the stress distribution in the clamping plates under abnormal track conditions are also discussed.
讨论了在不正常轨道结构条件下夹板的受力特点。

A discussion on physiochemical assessment of men athletes of track and field and football players in athletic sports schools
竞技体校男子田径，足球运动员的生化评定探讨

A Boy Called Joni Green Astronauts. This track has a very simple melody, but its so hypnotic that it stays in your head forever!
旋律简单，但催眠的感觉将让它常驻你心。

Before illustrating what a typical worker thread looks like, we need to address the ways in which an application keeps track of its overlapped operations.
下面，我们先来看看应用程序如何跟踪这些重叠操作。