hi, pls read the following sentence: "We get lost in the expectations of work and career and in the constant demands of daily life." Does the phrase "the expectations of work and career" means "our expectations from work and career" or "the expectations that work and career have from us"?

I vote for the second explanation, because it seems that the usage of "expectations" in "the expectations of work and career" should accord with "demands" in "the constant demands of daily life". Though I’ve checked out more examples corresponding with the first explanation in dictionaries.

PS: from in "our expectations from work and career" is likely a poor choice.
Are both readings grammatically correct?
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just to clarify something:

the work and the career are abstract and inanimate things
thus, they cannot anticipate or have expectations

only us, living people, have expectations with regard to our careers or work

I agree with Maple's analysis.

It's true that abstract/inanimate things cannot really have expectations. Nor can they have demands. However, we often say such things in a figurative sense, transferring human feelings and qualities to non-human agents. eg the gentle summer weather seduced me into staying home from work.

Best wishes, Clive
The expectations that work and career have of us would be the correct interpretation.
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Thank you all for your help!
Speaking of getting lost ...

Is the expectations of work and career the expectations we have about our work and career in terms of what benefits these will bring to us? Or is it the expectations that are imposed upon us (by our bosses or by management) because of the work and career that we are pursuing?

The first strikes me as the most likely interpretation, at least when it is examined as an isolated phrase. But as mentioned above, the second preserves a parallelism of directionality with "demands of daily life".

Neither one stands out as the one possible answer. I don't see any way of resolving it decisively.