“哪里冒出来的男低音?”我故意压低嗓门,拖长腔调来问。顿时,教室里特别安静,好奇的眼睛齐刷刷地集中在我身上。我不慌不忙解释:“上课时不时冒出来打断老师讲课的憨憨的、粗粗的说话声音,就叫男低音。” “Where does the bass come out?” I deliberately lowered my voice, asking me how long it was. Suddenly, the classroom was extremely quiet, and my curious eyes focused on me. I explained in no hurry: “From time to time, when class breaks up and interrupts the jealous, rough voice of the teacher, it is called bass.”