要求不是很明确,这7个字母全部都用到?还是可以从这7个字母中任意组合?
① 如果是7个全部用到,那么答案只有一个:
earshot - 听力所及的范围;耳听区;可听距离
② 如果从这7个字母中任意组合,那么答案就比较多了:
as at he to
are art ash ate eat eat era has hat her hoe hot oat oat ora rat rot sat sea set she tea toe
arts ears east eath eats hare hart hast hate hear heat hero hoar hose host oath rash rate rest
rose sate sear seat shoe shot soar sore sort soth tare tear tsar earth hares harts hears heart heats heros horse other rathe roast share shear shore short storethose trash ashore earths haters hearts hoarse others
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