《太平广记·卷三百六十·妖怪二》
庾翼就赶紧整好衣裳，挥拳向怪物打去，怪物挨打后叫了一声，顿时消失。庾谨
庾乃攘袂，以拳击之，应拳有声，忽失所在。庾谨
Yu Yi hastily straightened his clothes and punched the monster. After being hit, the monster let out a cry and disappeared immediately. Yu Jin
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 庾乃攘袂，以拳击之，应拳有声，忽失所在。庾谨 [/INST] Yu Yi hastily straightened his clothes and punched the monster. After being hit, the monster let out a cry and disappeared immediately. Yu Jin</s>
Identify the key themes in this Classical Chinese text and explain them in English: 庾乃攘袂，以拳击之，应拳有声，忽失所在。庾谨
user
Yu Yi hastily straightened his clothes and punched the monster. After being hit, the monster let out a cry and disappeared immediately. Yu Jin
assistant