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だめ， ダメ， 駄目
1. no good, not serving its purpose, useless, broken
2. hopeless, wasted, in vain, purposeless
3. cannot, must not, not allowed
4. neutral point, intersection owned by neither player at the end of a game
5. no!, stop!
没用，毫无价值；绝望的，徒劳的，白费的，毫无意义的；不能，不准，不允许；不！停下！