与机器时代的大批量复制不同，这些拷贝要便宜得多，它们是免费的。

Unlike the mass-produced reproductions of the machine age, these copies are not just cheap, they are free.

youdao

这个API执行了深度拷贝，包含所有嵌套的子对象都被复制到新的图表里面。

This API performs a deep copy, which includes all the nested children of the object being copied into the new graph.

youdao

这个复制的树是根树的从属挂载，所以根树中的挂载活动会传播到这个拷贝，但是不会反向传播。

The copied tree is made a slave of the root tree so that mount actions in the root tree are propagated to the copy but not the other way around.

youdao

One of the properties that you would like a plasmid to have is you'd like for cells to be able to replicate it, to make more copies of it.

所以你所希望质粒具备的一个属性,就是得能让细胞复制它,制造出更多的拷贝

耶鲁公开课 - 生物医学工程探索课程节选

It's really been a powerful tool in molecular biology because I might have a very small copy of a gene that I'm interested in and I can make enough copies that I can start to do something else with it.

这确实是分子生物学的一项利器,因为我可能只有,很少量的感兴趣的基因拷贝,而我可以马上制造出足够数量的复制品,能使我用作其他用途

耶鲁公开课 - 生物医学工程探索课程节选

that means that the cells have to be able to replicate the DNA on the plasmids, in order to make many more copies of it.

就是说这些细胞要能够,复制质粒上的DNA,以得到更多的拷贝

耶鲁公开课 - 生物医学工程探索课程节选