anterior-posterior point association anterior-posterior points selection
Related Translations:
前后: 1.(时间接近) around; about 短语和例子春节前后 around the spring festival2.(自始至终) from start to finish; from beginning to end; altogether 短语和例子这篇小说从动笔到定稿, 前后用了一年时间。 the novel took a year to write altoge
