名詞 call-in:

1. a telephone call to a radio station or a television station in which the caller participates in the on-going program

動詞 call-in:

1. summon to enter
   同義詞：call in
2. summon to a particular activity or employment
   同義詞：call in
3. pay a brief visit
   同義詞：visit, call in, call
4. take a player out of a game in order to exchange for another player
   同義詞：call in
5. make a phone call
   同義詞：call in
6. demand payment of (a loan)
   同義詞：call, call in
7. cause to be returned
   同義詞：recall, call in, call back, withdraw

call-in

adj.（形容詞）
Being in a format such that listeners or viewers are invited to have their telephone conversations with the host or guests on a show broadcast to other listeners:
熱線節(jié)目，現(xiàn)場扣應(yīng)：一種節(jié)目播送形式，即邀請聽眾或觀眾通過電話和主持人或客人進行交談并通過節(jié)目播送給其他聽眾：
例句：
a call-in radio show.
熱線廣播節(jié)目

n.（名詞）
A viewer or listener`s telephone conversation with or telephone call to the host of such a show.
熱線聽眾或觀眾：上述節(jié)目中與主人進行電話交談或打電話的觀眾或聽眾
A viewer or listener making such a call.
打上述電話的觀眾或聽眾