英语高手们帮我解释一段马克吐温的文章中的短语 Maybe our life there was not so brisk as life at "the front”;still it was brisk enough,in its way-one's brains didn't cake together there for lack of something to keep them stirring. 里面brain为啥要加s?cake together是啥意思? 多谢赐教! 不要拿词霸的翻译糊弄我!!!!