however表示转折与让步的用法1.however用作副词，表示转折，常用于谈及一个既成事实时，意为“然而；但是”。可放在句首、句中或句末，通常用逗号与句子其他成分隔开。如：However,longbeforethatbravemerchantsweretherealexplorersoftheWesternOcean.（Page12）Shefeltill.Shewenttowork,however,andtriedtoconcentrate.but和however都含有“但是、然而”的意思，但用法上有区别：⑴从语义上看，but表示非常明显...
