夹食物用的长夹子用英语怎么说？

叫tongs

tongs
pl.n.(used with a sing. or pl. verb)（复数名词）（与单数或复数动词连用）
A grasping device consisting of two arms joined at one end by a pivot or hingelike scissors.
钳，火钳：一种用来抓取的工具，由通过枢轴或枢状剪结合于一端的两臂组成