<span>it means : a call to take part in a contest or competition, especially a duel.
SENTENCE : I challenge friends all of the time.
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A. if there is an engineer on staff, he likely knows me
Answer: I'd say this segment of the article will mostly attract Young Adults to adults. most teens or younger I doubt could care less what's being said here.
Answer:
Wot?
Explanation:
Can you please tell me what you mean by 'the old man'?