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A, The reality of my job is hard. (I don't think that means exactly the same as B.)

B, The reality of my job is not pretty.

1, The sentence B means my job is not easy to enjoy, which the sentence A doesn't.

2, The sentence B means my job is not easy to enjoy, while the sentence A doesn't mean so.

I think the two sentences just above are correct.
'mean my job is not easy' is omitted from the end of the first sentence because 'which' refers to that, right?
In the second sentence, we cannot leave out 'mean so', right?

Thanks
LiJ
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I think you're generally right, but mean so isn't really necessary, but it clarifies the meaning.
Comments  
Marius HancuI think you're generally right, but mean so isn't really necessary, but it clarifies the meaning.
Got it! Thanks, Marius.