请问in what在这个句中是什么意思?what代指什么?这是什么语法?I am happy to join with you today in what will go down in history as the greatest demonstration for freedom in the history of our nation

请问in what在这个句中是什么意思?what代指什么?这是什么语法?I am happy to join with you today in what will go down in history as the greatest demonstration for freedom in the history of our nation they can do what they like句中what是什么意思,what在句中起什么作用 what' the sense in making things more difficult for yourself?请问这个句子是什么意思 what's the reason for your being late for the party?the traffic was heavy请问being在此句中是什么意思啊! 请问what happens in vegas stays in vegas是什么意思?好像是句谚语，我在natasha belingfield的歌词里听过，还在Two And A Half Men 里听过。麻烦各位高人给解释一下。谢谢 请问这个“^”符号是什么意思（在数学题中） 请问这个A和TA在电路图中是什么意思? 请问 what 和 matters 在此句做什么成分?what matters is how to put theory in practice 请问英语中这个是什么意思? oh,we are what we are when in the danger第一句歌词是这个 .请问这首歌叫什么 what impress me most is.请问 这个 句子语法结构是怎么样的?what impress me most is.请问 “is” 前面的 what impress me most 的句子结构是怎么样的?在英语中 是什么句?what是什么词性 这个句子中作什么成分 with the introduction of the computer,libraries today arequite different from__they were in the pasta.that b.what c.which d.those请问what 在句中怎么翻译呢，做什么成份， it is what you do rather than what you say that matters怎么翻译?matters在句中是什么意思? ask questions1,Sumbawa(island in what is now Indonesia)；2,Island in what is now part of Indonesia这两句话中what是什么意思,在句中起什么作用? In what aspect of your major will you study中in可以去掉吗为什么要放在句首 She gave me what money she had.在这个句子中,what是什么意思?请举同样例子. 请问i am curious as to what she will say.as在这个句中的作用是什么?应该是be curious 请问数字电路中这个符号是什么意思?