英语语法分析

He used to sailboard last summer.

去年夏天他常去冲浪。

This research selected 91 soccer athletes in different groups and 17 sailboard and sail athletes. EPQ and volition of athletes test have been executed.

选取91名不同级别的高水平足球运动员、17名国家级帆船帆板运动员作为被试，进行了人格特质和意志品质的心理测量、分析。