There are 50 students in Class 1.

一班有50名学生。

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Were these apple trees planted by the students in Class 1?

这些苹果树是一班的学生种的吗？

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Class 1: For starting, we will explore the asset in Maya and set up everything to get ready.

课程1：为了开始，我们将探索在玛雅的资产，并设置一切准备就绪。

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But if we had common knowledge of rationality in this class, then the optimal choice would have been 1.

但是如果大家都知道彼此是理性的,那么最优策略就是1

耶鲁公开课 - 博弈论课程节选

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

So, the example that we took on Monday and that we ended with when we ended class, was looking at the 1 s orbital for hydrogen atom, and what we could do is we could graph the radial probability as a function of radius here.

周一我们,最后讲到了，粒子是氢原子１ｓ轨道，我们可以画出,这幅径向概率分布曲线。

麻省理工公开课 - 化学原理课程节选

The star was driven around the camp in a Foxhound vehicle by Warrant Officer Class 1 Rob Ingham.

BBC: James Bond star Daniel Craig visits Camp Bastion troops

The EV1 is a full scale, 100% electric-powered race car built to resemble a modern Class 1 unlimited open-wheel machine.

ENGADGET: SRI EV1 brings all-electric racing to the Mexican 1000 rally (video)

The durable body is resistant to impacts and dropping, and a Class 1, Division 1, Groups C, D, F UL approval assures safe and compliant operation.

ENGADGET: Explosion-proof flashlight could be the first to outlive its owner