名詞 trunk call:

1. a telephone call made outside the local calling area
   同義詞：long distance, long-distance call

1. The lines were jammed up with trunk calls.
   電話線路全給長途通話占了。
2. Operator, can I have a trunk call to bedford645931, extension214, please?
   話務(wù)員，我想打個長途到Bedford645931號214分機(jī)。