miàn / duì / lǎo / shi / de / pī / píng / tā / bù / gǎn / huí / zuǐ / zhǐ / néng / dī / tóu / rèn / cuò面对老师的批评,他不敢回嘴,只能低头认错。Facing the teacher's criticism, he didn't dare to retort and could only lower his head and admit his mistake.