burst into laughter/tears为什么laughter后面不用加s,而tear后面要加s?那假设我是泛指的话，不是应该当作是复数个人笑吗？如果是的话，加不加s？

burst into laughter等于什么 burst into tears/laughter是什么意思 burst into tears/laughter是什么意思 burst into laughter为什么不是burst into laught At that joke,tom burst into laughter为什么用at burst into laughter,burst out laughing.二者用法为什么不同?求详解, They ____ laughter ___ his wordsa.broke out,atb.burst into ,inc.burst into,atd.broke out,in the s news made all of us burst into laughterthe s news made all of us burst into laughter burst into 与burst out 有什么区别burst into 是与名词连用吗,例如burst into tears/laughter.而burst out 是与ing的名词连用吗?如,burst out laughing/crying .Both ______ and ______ laughter do harm to your health.A.burst into tears;burst into B.to burst into tear;to burst intoC.bursting into tears;bursting into D.tear;/ After I told him the story,he suddenly burst into laughter. .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 into 高手帮忙讲讲burst into的用法!谢谢!burst into 是个动词词组,为什么后面直接加名次呢（burst into tears/laughter)?迷惑!高手给小女讲讲为什么?还有哪些词组有类似的用法?谢谢谢谢! MY English teacher's humor was _such as to_ make every student burst into laughter.为什么填_such as to_? 英语试题,改写句子,括号部分应改为分词短语,(when she head the news )she burst into laughter Hearing the joke,all the students burst into ______ laughter.A.visual B.long-standing C.spontane brust into laughter造句