复数。用作名词，意思是大剪刀;剪切机;剪下的东西(shear的复数);例句：He is cutting the branches with a pair of shears。他正用一把大剪刀剪树枝。
shears用复数
n.大剪刀，剪床
v.剪羊毛( shear的第三人称单数 );切断;剪切
And so be took his shears and walked quietly away .
他拿起剪刀，默默地走了。
Using cranes armed with metal shears capable of slicing five-centimeter-thick steel , the companies would carve the wreck into liftable chunks 200 to 300 metric tons in weight . Afterward , they would use electromagnets three meters in diameter to clean the seafloor of debris .
他们考虑用配备金属剪的起重机，剪子能切割5厘米厚的钢板，把船切成每块重量在200吨到300吨之间可以浮起来的大小，然后再用直径3米的电磁铁清理海底的碎片。