First of all, it wasn't easy for me to understand the teacher when she talked to the class. P.

刚开始，当老师和全班学生说话的时候，她的话对我来说很难听懂。

youdao

The National Association for Sport and Physical Education says twenty to thirty students in a P.E.class should be the limit.

VOA: special.2009.08.06

c p 1 points to an instance, it points to a particular version of this class.

奇怪形式的句子，不是那么奇怪,你们以前也见过这样的。

麻省理工公开课 - 计算机科学及编程导论课程节选

But other days I'll have class from 10 a.m to 6 p.m.

但是其他时候，我会从早晨十点一直上课到下午六点。

很好奇住宿生活 - SpeakingMax英语口语达人

Foremost among the recommendations: the safety board said all of the unlimited class aircraft like the P-51 Mustang should be made to demonstrate their airworthiness at racing speeds before participating in a public air race.

CNN: NTSB: Pilot overwhelmed by g-forces in Reno crash

Fifteen-year-old Huang Zhihui was in history class at 2:30 p.m.

NPR: Shoddy Work, Leadership Blamed in School Collapse

As a result, the Class 2A final would be played at 2 p.m.

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