1、简写为Happy Mid-Autumn Day！或者Merry Moon Festival!
2、正常的翻译应该是Wish you happy Mid-Autumn Festival. 但是有点雍长。简写可以用官方的缩写直接 Happy Mid-Autumn Day！或者Merry Moon Festival!
3、这样翻译言简意赅，形象具体，就像圣诞快乐的表述Merry Christmas，新年快乐Happy New Year一样的道理。
1、An inter-mining Mingyue for your viewing,weave a cool autumn you covered,as appropriate pieces of glass Moon Palace drunken your heart,and do a blessing Zhong Yuan your dreams.
采一轮松间明月供你观赏，织一件秋日的凉爽为你披上，斟一杯月宫的琼浆醉你心上，做一份仲秋的祝福圆你梦乡。
2、Just off the beautiful Chang E,ushered in the birthday of the motherland.
刚刚送走了美丽的嫦娥，又迎来了祖国的华诞。
3、One of the most simple: a happy Mid-Autumn Festival!
一句最朴实的话：中秋快乐!
合家团圆 Family Reunion
灯笼 lantern
祭拜 worship
祖先 ancestors
赏月 watch and admire the moon
中秋节 Mid-autumn day / -autumn Festival /
Moon Festival / Mooncake Festival / Moon Festival
lunar农历
mooncake月饼
minimooncake 迷你月饼
mooncakes with meat / nuts / 肉馅/果仁/蛋黄月饼
ham mooncake火腿月饼
grapefruit / pomelo / shaddock 柚子
glue pudding 汤圆
lantern / scaldfish灯笼
Chang E 嫦娥
Hou Yi 后羿
中秋节相关活动的英文词组:
gather to admire the bright mid-autumn harvest moon 聚在一起赏月
light lantern 点灯笼
carry the lantern around 提灯笼
burn incense 烧香
fire dragon dances 火龙舞
The custom of worshipping the moon 拜月的习俗
worshippe the full moon 拜满月的习俗
family reunion 家庭团聚 / 圆
came out to watch the full moon to celebrate the festival 到户外赏月
the custom of Mid-Autumn Festival celebration 庆祝中秋节的习俗