话题 in the improvement

话题 in the ways

话题 in the world

话题 in the Thames

话题 in the playground

话题 in the list

话题 in the letter

话题 in the photo

话题 in the future

话题 in the fold

话题 in the beginning

话题 in the tree

话题 in the hotel

话题 in the table

问题 ​Take,for example,the change in the footprints.解释

如何理解下列句子成分及中文？Take, for example, the change in the footprints.老师，有take for example ...有这个习语吗？