a small reddish planet that is the 4th from the sun and is periodically visible to the naked eye; minerals rich in iron cover its surface and are responsible for its characteristic color;
"Mars has two satellites"
(Roman mythology) Roman god of war and agriculture; father of Romulus and Remus; counterpart of Greek Ares
例句
用作名词(n.)
Like the earth, Mars goes round the Sun.如同地球一样，火星绕太阳转。
Mars is the fourth planet in order from the sun.火星是太阳系的第四颗行星。
Scientists are studying the photographs of Mars for signs of life.科学家们正在研究火星的照片，寻求生命的迹象。
This god was a lot like the Roman god of war, Mars.这个神与罗马的战神玛斯有许多相似。
Amulius was maddened with rage,but Rhea protested that it was the god Mars who was responsible for her pregnancy.阿穆利乌斯暴跳如雷，但是雷亚声称让她怀孕的是战神马尔斯。
