是take turn还是take turns?

是take turn还是take turns? take turn还是take turns? 是take turn to do还是 take turns to do? 是take turns to to 还是take turns doing? take turns 和 take turn 的区别 轮流做某事的英文是take turns doing 还是take turns to do? take turns to do 还是doing in turn和take turns to do sth take turn to do 还是take turn do sth take turns doing something take turns等于什么 take turns的语法