二氧化硫 sulfur dioxide, 發黑 turn black 硫磺 sulfur 水銀 mercury mercury poisoning, lead poisoning 發霉 to be (or become) moldy 亞硫酸鹽 sulfite, 硫酸鹽 sulfate 尿 urine 呼吸困難 to breathe hard 嘔吐 to sick sth. Up 腹瀉 to suffer from diarrhoea 過敏反應 an allergic reaction 哮喘 asthma 重金屬 heavy metal