Luxurious describes things that are very expensive, beautiful, and comfortable — a luxurious hotel, a luxurious car, luxurious sheets.

Luxurious用來形容 describes things that are very expensive, beautiful, and comfortable那些非常昂貴、美麗又舒適的東西——a luxurious hotel豪華飯店、a luxurious car豪華轎車、luxurious sheets豪華床單。

The feeling is soft, rich, and well looked after, not only “high price.” A room can be expensive and still feel cold; luxurious says it also feels good to be in.

The feeling這種感覺 is soft, rich, and well looked after是柔軟、豐厚、被照顧得很好的，not only "high price."不只是「價格高」而已。A room一個房間 can be expensive and still feel cold可以很貴卻感覺冷冰冰；luxurious這個字說的是 says it also feels good to be in待在裡面也讓人感覺很好。

It is a normal adjective in ads, reviews, and polite speech. It is not street slang, and it is not unkind.

It它 is a normal adjective是個普通的形容詞 in ads, reviews, and polite speech用在廣告、評論和客氣的談話裡。It它 is not street slang不是江湖俚語，and it它 is not unkind也不帶惡意。

Though actually, people stretch it: a “luxurious amount of time” just means plenty of time, and a “luxurious silence” means a silence you can enjoy. That stretch is common and accepted.

Though actually不過其實，people stretch it大家會把它用得更寬：a "luxurious amount of time"「luxurious amount of time」 just means plenty of time只是指很多時間，and a "luxurious silence"而「luxurious silence」 means a silence you can enjoy指的是一種讓人享受的寂靜。That stretch這種延伸用法 is common and accepted很常見，也被接受。

Do not mix it up with luxuriant, which is mainly for plants and hair growing thick. And do not save luxurious only for palaces; a small bathroom with thick towels can be luxurious too.

Do not mix it up with luxuriant不要跟luxuriant搞混，which is mainly for plants and hair growing thick那個字主要是用在植物和頭髮長得茂密。And do not save luxurious only for palaces而且不要把luxurious只留給宮殿用；a small bathroom with thick towels一間有厚毛巾的小浴室 can be luxurious too也可以是luxurious的。