tā / yì / tīng / dào / pī / píng / jiù / suō / tóu / suō / nǎo / bù / gǎn / wèi / zì / jǐ / jiě / shì

他一听到批评就缩头缩脑，不敢为自己解释。

As soon as he heard the criticism, he shrank back in fear and dared not explain himself.