“though,although,even though,even if ”等连词常被用来引导让步状语从句。这些词引导让步状语从句时,主句不可用but,但可以用yet或still. 例句: Although he tried hard, (yet/still) he failed. 尽管他很努力了,但仍然失败了。 Though he was inexperienced, he di...