duckhead

词形变化

duckheads 复数 duckheads

释义与例句

n.
  1. 1.

    Part of a tyre-changing device, designed to fit around the rim of the wheel so as to mount and demount the tyre.

    汽车 交通

词源

duck + head, from the resemblance to a duck's bill.

来源：wiktionary