Anonymous I feel " joint exercise " is correct , although I'm not entirely sure about the reason. You need to provide context for such questions. Two words side by side is very little to go on.
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AnonymousI feel "joint exercise" is correct, although I'm not entirely sure about the reason.You need to provide context for such questions. Two words side by side is very little to go on. We have to make guesses, and although I myself do find the chall