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ADJ-GRADED
高興的;快樂的
Someone who is happy has feelings of pleasure, usually because something nice has happened or because they feel satisfied with their life.
例句
Marina was a confident, happy child...
瑪麗娜是個自信、快樂的孩子。
I'm just happy to be back running...
我很高興能重新回到跑道上。
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ADJ-GRADED
（時光、地點或關系）令人愉快的，幸福的
A happy time, place, or relationship is full of happy feelings and pleasant experiences, or has an atmosphere in which people feel happy.
例句
Except for her illnesses, she had had a particularly happy childhood...
除了體弱多病外，她的童年特別幸福。
It had always been a happy place...
這里從前一直是個令人愉快的地方。
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ADJ-GRADED
（對情況或安排）滿意的，放心的
If you are happy about a situation or arrangement, you are satisfied with it, for example because you think that something is being done in the right way.
例句
If you are not happy about a repair, go back and complain...
如果你對修理效果不滿意，可以再找他們投訴。
He's happy that I deal with it myself...
我自己把事情解決了，對此他很滿意。
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ADJ-GRADED
樂意的;情愿的
If you say you are happy to do something, you mean that you are very willing to do it.
例句
I'll be happy to answer any questions if there are any...
如果有問題，我很樂意回答。
That's a risk I'm happy to take.
我愿意冒這個險。
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ADJ-GRADED
（表示祝福）…快樂
Happy is used in greetings and other conventional expressions to say that you hope someone will enjoy a special occasion.
例句
Happy Birthday!...
生日快樂！
Happy Easter!
復活節快樂！
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ADJ-GRADED
（巧合）幸運的，令人愉快的
A happy coincidence is one that results in something pleasant or helpful happening.
例句
By happy coincidence, Robert met Richard and Julia and discovered they were experiencing similar problems.
幸運的是，羅伯特碰巧遇到了理查德和朱莉婭，發現原來他們也碰到了類似的問題。