How to Use "gruelling" with Example Sentences

1. The most gruelling part of my trip .
2. A return to lower compensation would also hit hard in a world where bankers have grown used to working gruelling hours and changing employers regularly .
3. It commemorates a trek more gruelling than the tourists who gawp at it can imagine .
4. It is a gruelling schedule , but one that sevilla are viewing as a reward for their rise among the continent 's football elite .
5. Supporters of obama claimed romney had won nearly all of the debates during his gruelling nomination process .