1·To make clean straight folds in cardboard, first make a crease along the line with a blunt edge such as a spoon handle, then fold against a firm straight edge.
为了使清洁直纸板折叠，先如勺子处理沿钝边行折痕，然后对折直边坚定。
2·The edge is as blunt as an old butter knife.
刃钝得跟一把老黄油刀一样。
—— 《柯林斯英汉双解大词典》
3·No doubt it is the fate of all cutting-edge technology to eventually turn blunt, dull and outmoded, but that is a concern for another day, another era.
毫无疑问，所有尖端科技最终都无法逃脱愚钝、沉闷和过时的命运，但那是在另一个时代另一个日子里才需要面对烦恼。
4·With its future on a knife-edge, GM delivered a blunt warning that unless its creditors accepted the plan, it would declare bankruptcy and leave the courts to carve up the company.
尽管前途险恶，通用汽车还是传达出了直白的警告：除非债权人接受这个计划，否则公司将宣布破产，并将公司交给法院瓜分。
5·If you cut the iron wire with a knife, you'll blunt its edge.
如果你用刀砍铁丝，会使刀锋变钝的。
6·The finest edge is made with the blunt whetstone.
最好(锋利的)刀口是由钝的磨刀石磨成的。
7·The knife is blunt . I will edge it .
这把刀钝了，我要给它加刃。
8·Fin is tall and back-tapered with a blunt tip and fairing in the leading edge.
鱼翅是身高和后备圆锥与钝端和整流罩在市场领先优势。
9·If you try to cut stone with a knife, you will blunt the edge.
如果你试以刀砍石，你就会把刀刃弄钝。
10·Spying probably presents the most immediate danger to the West: the loss of high-tech know-how that could erode its economic lead or, if it ever came to a shooting war, blunt its military edge.
高科技技术泄露会侵蚀其经济领导地位。一旦发生热战既会削弱其军事优势。