1.moon over動詞詞組，暗戀，因不滿意或迷戀而對……發愣（呆）; 癡癡地思念（所愛的人）; 癡癡地思念；對……魂牽夢萦
You’ve been mooning over him for three months now.
你已經暗戀他三個月了。
He spends most of his time mooning over Helen.
他整天癡想着海倫。
2.moon about/around 動詞詞組，“閑逛、消磨時光”，尤其指無精打采、無所事事地。（無精打采地）閑逛；（郁悶地）消磨時光;也有“不幹正事、遊手好閑”的意味。例句：
Lettie was mooning around all morning, doing nothing.
萊蒂混了一上午，什麼也沒幹。
He mooned around the street, hoping to see Anna.
他在街上四處遊蕩，希望能見到安娜。
I wish you'd stop mooning about and do something useful! 我希望你别再閑混，去做點有用的事情！
3.once in a blue moon極少地；難得地；破天荒地; 千載難逢;百年不遇
Once in a blue moon you get some problems.
極少會碰到麻煩。
This is a once in a blue moon deal and only offered for a limited period!
這筆限時交易千載難逢！
4.many moons ago 就等于 long time ago “很久以前”。
這個詞主要常見于文學作品。
I weighed no more than him myself at that age, but that was many moons ago.
我自己在那個年齡時體重是決超不過他的，不過那已是很久以前的事了。
5.over the moon 是非常高興;樂翻了天;狂喜; 欣喜若狂（extremely happy and excited），例句：
She's over the moon about her new job. 她對新工作非常滿意。
She's over the moon about her new baby.
她生了一個小寶寶，樂極了。
— How does it feel to have won the championships?
— I’m over the moon!
— 獲得冠軍的感覺如何？
— 我太開心了！
6.ask/cry for the moon 或want the moon
想做辦不到的事情；想要得不到的東西；異想天開
例句：
There's no point in crying for the moon.異想天開是沒有用的。
I don’t ask for the moon; I just want him to listen to me for once.
我的要求并不過分，隻想他能認真地聽一次我的話。
7. promise (sb) the moon
開空頭支票；作不可能兌現的承諾
He promised her the moon, but after ten years of marriage they hardly had enough to live on.
他向她作了許多空頭承諾，可是結婚十年了，他們幾乎入不敷出。
最後： moon cake 月餅和 Moon Festival/the Mid-Autumn Festival 中秋節moon landing 登月；moonwalk 月球行走，太空步；moon-face 圓臉; moonlight, moonbeam 月光