adj.咕噥的；呼嚕的
動詞grunt的現(xiàn)在分詞形式.
I asked him what he thought, but he just grunted. 我問他在想什么，他只哼了一聲。
He gave a grunt of approval. 他咕嚕了一聲表示同意。
He grunted as the bullet hit him. 子彈擊中他時他疼得哼了出來。
