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hooray!
感叹词用法，表达喜悦或庆祝；也可说 Hooray for [sb/sth]!。
Hooray! We won the championship!
好哇！我们赢得了冠军！
欢呼声
hoorays — plural of hooray
先理解核心含义，再看它在真实句子里的用法。
欢呼声
a victory cheer; a shout of joy or approval
Hooray! We won the championship!
好哇！我们赢得了冠军！
表示胜利的呼喊。
A shout to signify victory.
兴奋的表达。
An expression of excitement.
A loud hooray rose from the crowd when the home team scored the winning goal.
主队攻入制胜一球时，人群中响起一阵响亮的欢呼声。
The children gave a hooray when their mother brought out the birthday cake.
妈妈端出生日蛋糕时，孩子们发出一阵欢呼。
After the announcement, a chorus of hoorays echoed through the hall.
宣布之后，一阵阵欢呼声在大厅里回荡。
感叹词用法，表达喜悦或庆祝；也可说 Hooray for [sb/sth]!。
Hooray! We won the championship!
好哇！我们赢得了冠军！
名词用法，指欢呼声，尤指胜利时的喝彩。
The fans gave a hooray when the goal was scored.
进球时球迷们欢呼了一声。
动词用法，后接 for 加对象，表示欢呼、喝彩。
Everyone hoorayed for the winner.
大家都为获胜者欢呼。
Not this
Hooray to you!
Use this
Hooray for you!
hooray 是感叹词，表示“为……欢呼”时要用介词 for，构成固定表达 Hooray for...；汉语的“向你欢呼”中的“向”会误导人用 to，但 to 表示方向，不表示欢呼的对象，因此应改为 for。
Not this
Hooray! We win the game!
Use this
Hooray! We won the game!
hooray 用于事情已经成功或结束后表示喜悦，因此后面从句一般用过去时来描述已发生的结果；汉语没有时态变化，容易错用一般现在时，所以要改成 won。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
万岁！加油！好极了！
The crowd shouted 'hip hip hooray!' when the team won.
球队获胜时，人群高喊“万岁！加油！”
为……欢呼；为……叫好
Hooray for the home team!
为主场队欢呼！
说“万岁”；欢呼
Everyone said hooray when the news was announced.
消息宣布时，大家都欢呼起来。
大声欢呼；高喊“万岁”
The fans shouted hooray as the star player scored.
球星得分时，球迷们大声欢呼。
发出欢呼声
She let out a hooray when she heard the good news.
听到好消息时，她发出一声欢呼。
欢呼一声
The crowd gave a hooray when the band appeared.
乐队出现时，人群欢呼了一声。
（欢呼用语）万岁！好哇！
At the end of the speech, everyone shouted 'Hip hip hooray!'
演讲结束时，大家齐声欢呼“万岁！”
（英式口语，含贬义）纨绔公子，爱交际的时髦阔少
He was a typical Hooray Henry, always showing off at parties.
他是个典型的纨绔公子，总在聚会上炫耀。
为……喝彩；好样的；真是太好了
Hooray for the home team!
为主队喝彩！
为好莱坞欢呼！
As the credits rolled, the crowd shouted, "Hooray for Hollywood!"
片尾字幕滚过时，人群高喊：“为好莱坞欢呼！”
万岁！万岁！
The children shouted "Hip hip hooray!" when the birthday cake arrived.
生日蛋糕端上来时，孩子们高喊：“万岁！万岁！”
Use hoorays naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
hooray 谐音“呼雷”：夺冠时人群高呼万岁，欢呼声如雷贯耳。
语域：informal 常见场景：celebrations、casual conversation hooray 比较常见于非正式口语，多用于庆祝、欢呼或表达兴奋；作为感叹词（interj.）最常用，作为名词或动词较少见，也偏口语化，正式场合可换用 cheer 等。
These words rhyme with hooray's final sound /eɪ/, though hooray is spelled with -ay. Beware of lookalikes such as hurry /ˈhʌri/, horror /ˈhɒrə/, and hoard /hɔːrd/, which look similar in spelling but do not rhyme.
Dictionary facts from ECDICT, WIKTIONARY.