grating

1. N-COUNT A grating is a flat, metal frame with rows of bars across it, which is fastened over a window or over a hole in a wall or the ground. 格栅

...an open grating in the sidewalk. ...人行道上一个开着的格栅。

2. ADJ A grating sound is harsh and unpleasant. 刺耳的[usu ADJ n]

She recognized the grating voice of Dr. Sarnoff. 她听出了萨诺夫博士那刺耳的嗓音。