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新月形，月牙形(伊斯兰教最重要的象征)
A crescent is a curved shape that is wider in the middle than at its ends, like the shape of the moon during its first and last quarters. It is the most important symbol of the Islamic faith.
例句
A glittering Islamic crescent tops the mosque.
新月形标志在清真寺顶端闪闪发光。
...a narrow crescent of sand dunes.
狭长的新月形沙丘带