Good evening and welcome to physics today.
晚上好，欢迎来到今天的物理课堂。
The largest subfield of physics today is condensed matter.
现今物理学最大的分支学科是凝聚态物质。
For one thing, physics is a much different field today.
首先，物理学在今天是一个非常不同的领域。
Can you believe what my physics professor said today?
你能相信我的物理教授今天所说的话吗？
Shall we have physics class today?
我们今天有物理课吗？
I wonder if we have got any physics homework today.
今天咱们有没有物理作业？
I wonder if we have got any physics homework today.
今天咱们有没有物理作业？
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