phlegm/flem/名词痰After weeks of battling a stubborn cold, Tom finally coughed up a thick glob of phlegm, bringing him some relief.经过数周与顽固的感冒作斗争,汤姆终于咳出了一团厚厚的痰,让他感到些许舒缓。冷静,沉着,镇定想跟读,去练习