hurt (第三人称单数) he(宾格) they(宾格) chase(动词-ing形式)
Hurt is a noun, which means physical or emotional pain. It is often used to describe the feeling of being injured or harmed. In the sentence "He hurt them," the subject "he" is the person who caused the pain, while "them" refers to the people who were affected by the pain. "Chase" is a verb that means to pursue or follow someone aggressively. It is often used to describe a situation where someone is chasing after another person with the intention of catching them. In the sentence "They chase each other," "they" refers to the people involved in the chase, while "each other" implies that they are both trying to catch each other.