Students all over the country are facing an uncertain future.全国各地学生前途未卜。The sandbank was uncertain, like quicksand under his feet.那个沙坝并不稳固，他脚下如同踩着流沙一般。For a minute he looked uncertain, and then recovered his composure.有一...
In industry, diamond can form a tough, non-corrosive coating for tools.在工业上，金刚石可以用作工具表面坚固、耐腐蚀的覆盖层。the corrosive effects of salt water盐水的腐蚀作用Many highly corrosive substances are used in the nuclear industry.核工业使用许多腐蚀性很强的物...
云仙山今天一直在向外喷涌火山灰、气体和火山岩。Mount Unzen has been spewing out volcanic ash, gas, and rock today.他转身不理他们，噔噔噔地爬上了山。He turned his back on them and stomped off up the hill.亚历山德拉穿着那身过时的衣裳，显得臃肿笨拙。Alexandra looked plump and awkward i...
And there is the dread of the unknown, above all , the awful fear of hellfire.而且还有对未知的恐惧; 尤其是对于炼狱的惧怕.There at the fording in the little boat the unknown man plays upon his lute.浅滩的小舟上有个不相识的人正弹着琵琶.An unknown man has stole...