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verb + extravagantly
extravagantly 常放在所修饰的动词之后，强调行为浪费。
He spends extravagantly on clothes.
他在衣服上挥霍无度。
挥霍无度地；奢侈浪费地
先理解核心含义，再看它在真实句子里的用法。
挥霍无度地；奢侈浪费地
in a wasteful manner
He spends extravagantly on clothes.
他在衣服上挥霍无度。
以奢侈浪费的方式；挥霍地。
With lavish expenditure or behaviour; in an extravagant manner.
He spent money extravagantly on the new car, buying every extra feature.
他在新车上挥霍无度地花钱，购买了所有附加功能。
She extravagantly ordered a bottle of wine that cost more than her rent.
她挥霍无度地点了一瓶比房租还贵的葡萄酒。
They celebrated extravagantly, wasting a month's salary in one night.
他们挥霍无度地庆祝，一夜之间浪费了一个月的工资。
extravagantly 常放在所修饰的动词之后，强调行为浪费。
He spends extravagantly on clothes.
他在衣服上挥霍无度。
修饰形容词时表示‘极其’，带有奢侈、过度的意味。
The hotel is extravagantly expensive.
这家酒店贵得离谱。
过去分词前用 extravagantly 可表示状态或动作的方式。
The room was extravagantly decorated.
这个房间装饰得极为奢华。
Not this
He spends money extravagant.
Use this
He spends money extravagantly.
动词 spends 需要副词来修饰，而 extravagant 是形容词，不能修饰动词；改为副词 extravagantly 才符合英语的修饰关系。
Not this
He spends extravagantly money.
Use this
He spends money extravagantly.
英语中副词修饰动词短语时，通常不能插在及物动词和它直接宾语之间；应说 spends money，再把副词 extravagantly 放在宾语后或句末。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
挥霍无度地花钱
He inherited a fortune but spent extravagantly on cars and travel.
他继承了一大笔财产，却挥霍无度地买车、旅游。
过着奢侈的生活
After winning the lottery, they began to live extravagantly.
中彩票后，他们开始过着奢侈的生活。
穿着奢华
She is known for dressing extravagantly at every red-carpet event.
她以每次走红毯都穿着奢华而闻名。
装饰得极为奢华
The hotel lobby was decorated extravagantly with gold leaf and crystal chandeliers.
酒店大堂用金箔和水晶吊灯装饰得极为奢华。
Use extravagantly naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记住 extra（额外）：额外乱花钱、超出需要地挥霍，就是 extravagantly（挥霍无度地）。
语域：neutral 常见场景：daily spending、business expense、literary description 多用于书面或正式语体，指花钱没有节制、浪费；日常口语中较少见，但可用于批评或夸张。
No common word rhymes exactly with /ɪkˈstrævəɡəntlɪ/ (same stressed vowel /æ/ and following /vəɡəntlɪ/). The listed words share the written ending -antly and the unstressed final syllable /əntli/, but have different stressed vowels (/ɒ/, /ɪ/, /ɔː/, /ɪ/, /e/), so they are spelling lookalikes, not rhymes. Do not confuse -antly with -ently (e.g., 'currently' /ˈkʌrəntli/).
Dictionary facts from ECDICT, WIKTIONARY.