Unfortunately, this makes it difficult to trace such "user models" to the System Actors in the System model.

不幸的是，这使得从“用户模型”追溯到系统模型中的系统参与者是困难的。

youdao

Ribs should not be high or narrow; this makes it difficult for the material to flow.

加劲肋不要过高、过窄，因为这会造成材料流动困难。

youdao

And this makes it difficult for us to find areas where people can settle in, "he said."

这使得我们寻找人们可以安家的地方更加困难。

youdao

This makes it difficult for air to flow in and out of the lungs.

VOA: special.2009.07.28

This makes it difficult you could say and this is Aristotle's point I think this makes it difficult for the philosopher to be a good citizen of any actual regime.

可以这么说，这让它变得很难搞,而这也是亚里士多德的重点,我认为这让哲学家很难成为好公民,无论身处那一种现行政体中。

耶鲁公开课 - 政治哲学导论课程节选

But it's a difficult claim because even as Milton makes this claim, he manages to undermine its force.

但这是困难的，因为即便是弥尔顿做出了这一宣告，他也打算降低它所蕴含的威力。

耶鲁公开课 - 弥尔顿课程节选

This makes it difficult for charities to get money and time from the public.

ECONOMIST: Russian love in a cold climate

This makes it difficult for women to gain access to networks that could provide equity capital.

FORBES: Entrepreneurs

This makes it difficult to ensure a bond ETF encompasses enough liquid bonds to track an index.

FORBES: An Easy Way To Add Fixed-Income To Your Portfolio