lisp
/lɪsp; lɪsp/ n
speech defect in which / s/ is pronounced as / θ/ and / z/ as / ð/ 咬舌（言语缺陷, 发 /s/、 /z/ 音时发成 /W/、 /T/）
speak with a lisp 用咬舌音说话
have a bad, pronounced, slight, etc lisp 有很重的、 明显的、 轻微的...咬舌音. lisp, v [I, Tn]
speak or say (sth) with a lisp 用咬舌音说（话）.