tackle

Compared meaning: to take on and deal with a task (verb).

比较义项：承担、着手处理（任务或问题）（动词）。

• undertake

  More formal; used for agreeing to take responsibility for a task or duty, often in professional or official contexts, rather than for physical or everyday problems.

  更正式；用于表示同意承担某项任务或职责，常见于正式或工作场合，而不用于具体的日常问题。

  The committee agreed to undertake a full review of the company's safety policies.

  委员会同意对公司的安全政策进行一次全面审查。

• tackle 本词

  More informal and energetic; used for actively confronting a difficult or unpleasant problem, often something concrete, rather than formally agreeing to a duty.

  更随意、更有活力；用于主动应对一个困难或棘手的问题，通常是具体的事情，而不是正式同意承担某项职责。

  He rolled up his sleeves and tackled the leaking pipe himself.

  他卷起袖子，亲自动手处理那根漏水的管子。

Undertake is more formal: agreeing to take responsibility for a task or duty, often in professional settings. Tackle is more informal and energetic: actively confronting a difficult problem, often something concrete. This does not cover tackle meaning a move in sports like rugby.

这两个词都表示接手处理某件麻烦或任务，但 undertake 语气更正式，强调正式同意承担某项责任或工作；tackle 更随意、更强调主动、直接地应对一个困难或棘手的问题，语气更有活力。此处不比较 tackle 的另一个意思——橄榄球等运动中的“擒抱”动作。

Compared meaning: equipment or gear for a purpose (noun).

比较义项：装备、用具（名词）。

• tackle 本词

  Tackle is the whole set of gear needed for a sport or activity, especially fishing tackle (rods, hooks, lines); it names a collection of tools, not a built structure.

  tackle 指从事某项运动或活动所需的一整套用具，尤指钓具（鱼竿、鱼钩、鱼线等），强调“工具的集合”，而不是搭建起来的装置。

  She packed all her fishing tackle into a single waterproof bag.

  她把所有钓具都装进了一个防水袋里。

• rig

  Rig is a specific apparatus or structure assembled for one particular purpose, often large or technical, like an oil rig or a lighting rig.

  rig 指为某一具体用途而搭建、组装起来的一套装置或设备，往往规模较大或较专业，如油井（oil rig）或灯光架（lighting rig）。

  The film crew set up a lighting rig above the stage before filming.

  摄制组在拍摄前在舞台上方搭起了一套灯光架。

Tackle is the whole set of gear for a sport, especially fishing tackle like rods and hooks. Rig is a structure built for one purpose, often large or technical, like an oil rig or lighting rig. Not covered: tackle as a verb.

这两个词都表示“为某种用途准备的装备”，但 tackle 常指从事某项运动或活动所需的一整套用具（尤指钓具），强调“工具的集合”；rig 则指为完成具体任务而搭建、组装起来的一套装置或设备，强调“整套装置的搭建”，常见于油井、灯光、音响等专业或大型设备。这里不比较 tackle 作动词“处理，应对”的用法。