Greeksoldierssentmessagesbyturningtheirshields(盾)toward...
问题详情:Greeksoldierssentmessagesbyturningtheirshields(盾)towardthesun.Theflashesreflectedbylightcouldbeseenseveralmilesaway.Theenemydidnotknowwhattheflashesmeant,butotherGreeksoldierscouldunderstandt...