Answer: This refers to: "alliteration" .
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Note that "alliteration" also applies to what is mentioned in the THIS VERY question—<em>beginning with the some vowel sound or letter</em>.
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Answer:
I get the impression that even though they were tough they were not tough enough to survive what killed them.
Explanation:
Hope this helps.
The person who has never climbed a mountain before would be more tentative because they would be less sure of themselves whereas the experienced mountain climber would be confident in their abilities.
My answer would be thwack, as in the suction y noise when you step out of the mud.
