练武的人应该经常练，唱歌的人应该经常唱。比喻只有勤学苦练，才能使功夫纯熟。
The boxer's fist must stick to its task, and the singer's mouth no rest must ask.
拳(quán)
不(bù fǒu)
离(lí)
手(shǒu)
()
曲(qū qǔ)
口(kǒu)
