永不生锈的螺丝钉
yǒng​bù​shēng​xiù​de​luó​sī​dīng

a screw that never rusts

  1. 永不 yǒng​bù adverb
    never
    will never; never ever
  2. 生锈 生鏽 shēng​xiù verb + noun
    to rust
    to become rusty; to oxidize on the surface of metal
  3. 的 de particle
    [possessive/attributive]
    Connects a describing word or phrase to the noun it describes; also used to indicate a possessive relationship.
  4. 螺丝钉 螺絲釘 luó​sī​dīng
    screw
    a metal fastener with a helical thread used to join objects together