The back of his hand was at right angles to his body, his thumb parallel to his thigh.
请问老师，his thumb parallel to his thigh是独立主格结构吗？名词his thumb + 形容词parallel，表示随着
等于并列句 The back of his hand was at right angles to hisbody, and his thumb was parallel to his thigh.
是的，his thumb parallel to his thigh是独立主格结构作随着状语.可以改写成并列句的形式
