vt. 下半(旗)。 2.n. 半旗位置 (fly [hang, hoist] a flag at half-mast 下半旗。 Half-mast high 在半旗位置)。
a position some distance below the top of a mast to which a flag is lowered in mourning or to signal distress 同义词：half-staff,
Half mast is the term describing flying a flag below the summit of the flagpole (mast). This is done in many countries as a symbol of respect, mourning, or distress.
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