Ask him for the dictionary.
壹個運用的場景：
A student is doing his homework and he needs to look up some words in the dictionary. He might say to his friend, "Can you ask him for the dictionary?" meaning "Can you ask the teacher for the dictionary?"
壹個學生正在做作業，需要查找壹些單詞的含義。他可能會對他的朋友說：“妳可以問他要壹下字典嗎？”意思是“妳可以問老師要壹下字典嗎？”