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Từ điển American Heritage Dictionary 4th
lookout
look·out (lo͝okʹout')n. 1. The act of observing or keeping watch. 2. A high place or structure commanding a wide view, used for observation. 3. One who keeps watch. 4. South Atlantic U.S. Outlook; view. 5. An object of concern or worry. See Synonyms at affair.
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