For a long time MIT has not had a laboratory associated with large courses.
麻省理工很长一段时间以来,都没有为大课设置实验室。
So for the majority of students, they did not have a physics lab.
因此对大多数学生来说,他们并没有物理实验室。
Zero, there's no lab.
,指的是没有实验室。
It's totally synthetic, there's no micro-organism involved in making the DNA for you, You can do it very rapidly in a laboratory, and fairly inexpensively now.
完全是复制的过程,没有任何微生物参与制造DNA,你可以在实验室里迅速地进行,费用现在也相当便宜了
For smaller versions there were, but not for the large course.
小课有实验室,但大课没有。
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