So the sentence we have is: " A child next to an old man is a strong juxtaposition." So, the word " juxtaposition" , the word " juxta" actually means near and " position" means position, so near in position.

所们有一话是：“A child next to an old man is a strong juxtaposition” 。 所，“juxtaposition”词，“juxta” 词实际上是指靠近， “position” 是指位置，位置很近。