被迫付出,勉强说出,吐出
cough up v 1: give reluctantly; "He coughed up some money for his children's tuition" [syn: {pony up}, {spit up}] 2: discharge (phlegm or sputum) from the lungs and out of the mouth [syn: {expectorate}, {cough out}, {spit up}, {spit out}]