walk on two legs 为什么用这里用on

walk on two legs 为什么用这里用on

walk on two legs 中文译作：用两条腿走路。这里用on表示依靠，意思是: (身体重量)由(某部位)支撑 。类似的还有：
　　1、He continued to lie on his back and look at clouds.
他仍旧仰卧着,望着天上的云彩。
　　2、He raised himself on his elbows,squinting into the sun.
　　他用胳膊肘支起身子,眯着眼睛看了看太阳。
　　3、She was on her hands and knees in the bathroom.
　　她趴在浴室的地上。
　　walk 英 [ wɔ:k ] 美 [ wɔk ]
　　vt.& vi.走 步行 散步
　　n.步行 步态 人行道 步行的路径
　　vi.行走 陪伴…走 徒步旅行 不翼而飞
　　vt.牵着（动物）走，遛，赶着…走
　　复数： walks 过去式： walked 过去分词： walked 现在分词：walking 第三人称单数： walks
　　1.Do not wait for good things to happen to you. You need to walk towards happiness.
　　不要等待好事降临，你要向幸福进发。
　　2.She went for a brisk walk to work off her frustration.
　　她快步走了一会儿，以排解心中的沮丧。

因为介词on在这里是一种固定用法，用身体部位，所以必须使用on。 列句： You use on to say what part of your body is supporting your weight. He continued to lie on his back and look at clouds... 他仍旧仰卧着,望着天上的云彩. He raised himself on his elbows,squinting into the sun... 他用胳膊肘支起身子,眯着眼睛看了看太阳. She was on her hands and knees in the bathroom. 她趴在浴室的地上.

介词on在这里的意思是： （身体重量）由（某部位）支撑 You use on to say what part of your body is supporting your weight. He continued to lie on his back and look at clouds... 他仍旧仰卧着,望着天上的云彩. He raised himself on his elbows,squinting into the sun... 他用胳膊肘支起身子,眯着眼睛看了看太阳. She was on her hands and knees in the bathroom. 她趴在浴室的地上.

介词on在这里的意思是： （身体重量）由（某部位）支撑 you use on to say what part of your body is supporting your weight. he continued to lie on his back and look at clouds... 他仍旧仰卧着，望着天上的云彩。 he raised himself on his elbows, squinting into the sun... 他用胳膊肘支起身子，眯着眼睛看了看太阳。 she was on her hands and knees in the bathroom. 她趴在浴室的地上。 俯护碘咎鄢侥碉鞋冬猫 祝你开心如意！