ladders

英 [ˈlædəz]

美 [ˈlædərz]

n. 梯子; (事业上或机构中晋升的)阶梯，途径; (紧身裤袜或长筒袜的)滑丝，抽丝
v. (使紧身裤袜或长筒袜)出现滑丝，抽丝
ladder的第三人称单数和复数

柯林斯词典

梯子
Aladderis a piece of equipment used for climbing up something or down from something. It consists of two long pieces of wood, metal, or rope with steps fixed between them.
N-SING （社会、组织或系统中晋升或降级的）梯级，阶梯
You can usethe ladderto refer to something such as a society, organization, or system which has different levels that people can progress up or drop down.
1. If they want to climb the ladder of success they should be given that opportunity...
  假如他们有出人头地的意愿，就应该给他们那样的机会。
2. She admired her mother's sister for moving up the social ladder.
  她羡慕姨妈社会地位的提升。
N-COUNT （女性长筒袜或裤袜的）抽丝，脱线
Aladderis a hole or torn part in a woman's stocking or tights, where some of the vertical threads have broken, leaving only the horizontal threads.
1. Her hair was a mess and there was a ladder in her tights.
  她头发乱糟糟，裤袜脱了线。

in AM, use 美国英语用 run