名詞 call back:

1. a return call
   同義詞：call-back
2. the recall of an employee after a layoff
   同義詞：call-back
3. a request by the manufacturer of a defective product to return the product (as for replacement or repair)
   同義詞：recall, callback

動詞 call back:

1. cause to be returned
   同義詞：recall, call in, withdraw
2. recall knowledge from memory; have a recollection
   同義詞：remember, retrieve, recall, call up, recollect, think
3. return or repeat a telephone call
4. summon to return
   同義詞：recall

1. Shall I tell him you'd call back, or do you want him to call you?
   要我告訴他你會再打電話來，還是叫他打電話給你？
2. No one can call back yesterday.
   光陰一去不復(fù)返。
3. I'm very busy now. Please call back later.
   我現(xiàn)在很忙，請過一會兒再來電話吧。
4. Please tell him to call back. My number is57664900.
   請叫他打回電。我的電話號碼是57664900。