動詞 die out:

1. become extinct
   同義詞：die off
2. cut or shape with a die
   同義詞：die

1. Many old customs are dying out.
   很多古老的習俗正在消失。
2. No one have come up with a convincing explanation of why dinosaur die out.
   尚未有人能對恐龍的滅絕作出一個令人信服的解釋。
3. The English of today is very different from the English of500 years ago. In time, some even die out completely.
   現(xiàn)在的英語與500年前的英語已大不相同，有一些甚至會在今后完全消失。