Overjoyed means extremely happy — not a small smile, but the feeling when news is so good it fills you. Parents are overjoyed at a birth; you might be overjoyed to hear a friend is coming home.

Overjoyed means extremely happyOverjoyed的意思是極度開心 — not a small smile——不是小小的一個微笑而已 , but the feeling when news is so good it fills you，而是消息好到把你整個人填滿的那種感覺。 Parents are overjoyed at a birth父母在孩子出生時會overjoyed（欣喜若狂） ; you might be overjoyed to hear a friend is coming home；你可能會因為聽到朋友要回家而overjoyed。

It is a warm, slightly careful word: at home in a card, a speech, or a kind conversation, less at home in slang. You use it as an adjective: she was overjoyed; they were overjoyed to see us.

It is a warm, slightly careful word它是一個溫暖、用起來有點講究的字 : at home in a card, a speech, or a kind conversation：適合出現在卡片、演講，或親切的對話裡 , less at home in slang，比較不適合出現在俚語裡。 You use it as an adjective你會把它當形容詞用 : she was overjoyed; they were overjoyed to see us：像she was overjoyed（她欣喜若狂）、they were overjoyed to see us（他們見到我們欣喜若狂）。

People almost never say I overjoy as a verb in ordinary talk. Over- here means “completely, more than the usual amount,” and joy is the happiness.

People almost never say人們幾乎不會說 I overjoyI overjoy as a verb in ordinary talk把它當動詞用在日常對話裡。 Over- here means “completely, more than the usual amount,”這裡的over-意思是「完全、超過平常的量」 and joy is the happiness而joy就是開心的意思。

It is stronger than glad or pleased, and a little more formal than so happy.

Itit than glad or pleased比glad或pleased is stronger語氣更強 , and，也 than so happy比so happy a little more formal更正式一點。