(1)月球(亮)(body that moves round the earth once a month and reflects light from the sun at night)[the～]：the surface of the～月球表面;walk on the/land on the～月球行走/登月;The～has risen/is on the wane/was hidden behind the clouds/is bright tonight.月亮升起来了/月亮开始缺亏/月亮被乌云遮住了/今晚月明。phases of the～月的盈亏;There was no～last night.昨天晚上没月亮。a～landing登月;

(2)某种状态的月亮(the moon as it appears at a particular time)[U，a～]：a full/half/new/crescent～满月/半月/新月/弯月;the waxing/the waning～盈月/亏月;the old～in the arms of the new新月抱残月;An enormous～hangs over the garden.花园中一轮巨大的明月悬挂在空中。

(3)卫星(object like a small planet that travels round a planet other than the earth) [C]： The planet Jupiter has at least sixteen～s.木星至少有16颗卫星。the～s of Saturn and Mars土星和火星的卫星;Titan is the largest～.土卫六是最大的一颗卫星。

over the moon 快乐极了，非常高兴(infml)：She's over the～about her success/with her new car.她很高兴成功了/有了一辆新车。

→′moonless adj 无月亮的;′moonbeam n(一道)月光;′moon-face n 圆脸;′moonlight n 月光;′moonlighting n(指在夜间从事)第二职业的人;′moonlit adj 有月光的;′moonshine n月光;空谈，废话;非法酿制的酒;′moon-shot n 向月球发射宇宙飞船;′moonstone n(一种矿物)月长石;′moonstruck adj心态失衡的;多愁善感的