为什么burst out doing没有单三的变化?

为什么burst out doing没有单三的变化? burst out doing sth burst out 这里OUT 的词性是什么,有没有,BURST OUT DOING STH 请举例说明,谢谢 用burst out doing造句如题,doing的位置可更换成其他动词 burst into laughter,burst out laughing.二者用法为什么不同?求详解, burst out laughing 请问为什么,laugh加ing burst into与burst out语法区别 辨析burst out与burst into break out doing 有无此用法?burst into tears.break into tears.突然大哭.burst out laughing.突然大笑.请问 break out laughing.可不可以?还有 burst into tears 等于 break into tears .Both___ _ and ____ _ laughter do harm to your health.A.burst out crying;burst into B.to burst out tears;to burst intoC.bursting into tears; bursting into D.bursting into crying;bursting out为什么用原形? burst out 后接什么 the story sounded so funny that all of us_laughing on hearing it.A burst out B burst in C burst with D burst on选哪一个为什么选啊? A tall man ___ and ordered everyone to stand stillA burst out B burst with C burst into D burst in为什么选C不选D?二者不都有闯入的意思吗 into和out都是介词吗?如果是介词,那为什么burst into laugh中的 laugh不加ing,而burst out laughing却要加ing? burst out和 burst into 有什么区别吗? 请问burst into 与 burst out有何区别? burst into 与burst out 有什么区别 burst out和 burst into 有什么区别吗?