Butar布塔尔butconj.但是prep.除 ... 以外adv.仅仅；只pron.无不But where was the Buddha?Butadiene-styrene Elastomer丁苯弹性体but not a single pineapple.但就是没有菠萝。But oneself cannot do this.不过这个却不是人自己能做得了的。bute always gets high mark.但他总得到高标记。But what is an emergency?But the world is shrinking.但是世界界线在缩小。butyric acids/pharmacology丁酸类／药理学butanol/ hydrochloric acid正丁醇／HCl法But could I do otherwise?