(1)未だに立っている枯れ木、通常そのままにしてある森の
(2)a dead tree that is still standing, usually in an undisturbed forest; "a snag can provide food and a habitat for insects and birds"
さらに詳しく
(1)資源を使い果たす
(2)deplete of resources; "The exercise class drains me of energy"