英文中有哪些常用的句首词汇答:一、第一,首先,最重要: first,firstly,first and foremost,to begin/start with,most importantly,二、表对比 与转折:yet,however,nevertheless,in contrast (to),whereas,in spite of(despite),instead,on the contrary,even if(though),unlike,conversely.三、表递进:and,as well as,then,more...