Asking him to choose between his family and his job would put him in an impossible position.

put 是动词，意思是"放置、使处于某种状态"。 him 是代词 he 的宾格形式，指代前文提到的"他"。 in 是介词，表示"在...之中"或"处于某种状态"。 an 是不定冠词，用于修饰以元音音素开头的单数名词。 impossible 是形容词，由前缀 im-（表示否定）和 possible（可能的）组成，意思是"不可能的"。 position 是名词，意思是"位置、处境、立场"。 put someone in an impossible position 这个短语的意思是"使某人处于无法选择的困境"，即"让某人陷入两难境地"。