this与that,

this and that covoji learning learning.covoji.com
this is 这是(向别人介绍离 你近的人或物 that is 那是(向别人
this that 区别 this is that is 这是 那是(近距离(远
this和that的区别.pptx[自动保存的]
英语指示代词this和that的用法