Warning: file_put_contents(/www/wwwroot/ppbbu/73904.com/cache/fa6c1a4708a1cc220dcb09cf06f82570.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/73904.com/index.php on line 55 stage of mental development例句_stage of mental development英汉例句_stage of mental development双解例句_骑士汉英词典
There is high rate of bullying problem among the elementary school students because it is the special stage of their physical and mental development. 小學兒童因其身心發展的特殊性，成爲欺負行爲的高發人群。