After several unsuccessful confrontations with her supervisor, Sandra became inured to his harsh treatment in order to keep her job.
Explanation:
When Gulliver said that "<em>By the same computation, they provided me with sheets, blankets, and coverlets, tolerable enough for one who had been so long inured to hardships</em>", he is implying that he had already become so accustomed to the hardships that he no longer finds it uncomfortable. The word "inured" means to get accustomed to the situation after suffering for so long, especially bad situations. So, in this sense, the sentence "After several unsuccessful confrontations with her supervisor, Sandra became inured to his harsh treatment in order to keep her job" correctly uses the word "inured" in the right way.
