我们必须找到从页岩中采油的经济方法.We must find economical methods for extracting oil from shale.我们可以从页岩中提取石油.We can extract oil from shale.这个地区的灰岩 、 砂岩和页岩都是很柔软的.The limestone, sandstone and shale of this area were soft....
Rousseau's intellectual influence was on the whole demoralizing.总的说来,卢梭给人在思想上的影响是伤风败俗的.Those snipers are demoralizing my people.那些狙击手让我手下的士气受到很大的打击.The news is very demoralizing.这消息很使人泄气.Persistent disapproval or cr...