(US 美 tuxedo) noun [C] a black or white jacket that a man wears on formal occasions. A dinner jacket is usually worn with a special tie (
a bow tie). （男子在正式场合穿的）礼服上衣（黑色或白色，通常配以蝶形领结）
dinosaur/ˈdaɪnəsɔ:(r) ||; ˈdaɪnəˌsɔr/noun [C] one of a number of very large animals that disappeared from the earth (
became extinct) millions of years ago 恐龙:
dinosaur fossils 恐龙化石 ☞picture on page C8 见C8页插图