but yet while however 区别

but yet while however 区别 yet however but while 的区别 however,yet,but,while之间的关系 but however..区别是什么but however yet while 区别是什么 yet,however,but,while,still 作然而但是讲时,差别在哪儿 yet,however,but,while,still是然而、但是时,差别在哪里? 请问 yet while however but 的谁来 help me 搞不懂这区别 伤脑筋 英语转折连词问题but however while yet 四个词的用法区别是什么 howevwr but while yet 的用法与区别能不能回答再清楚些 but,yet,while“表转折或对比”有什么区别和联系? 几个然而介词的区别whereas however, while, nevertheless, but, yet... He always goes swimming,_____ cold it is .a.however b.but c.yet d.while 恳请详解 Although he was ill,________he went on working.A.but B.yet C.and D.while 知道的快回答, yet和while的区别详细些! while与yet,fot谁表示 但是? yet和but的区别 Though it wass raining hard,_______ they didn't stop working.A.yet B.but C.how D.and But it is not yet known just how the placebo works to heal the body.它修饰的是known还是how或者是其它什么?