shallow

Compared meaning: lacking depth or real substance (adjective).

比较义项：肤浅、缺乏深度或实质内容（形容词）。

• shallow 本词

  Directly judges a person's character, mind or feelings as lacking depth; blunt, informal and clearly negative, often heard in everyday conversation about people.

  直接评判一个人的性格、思想或情感缺乏深度；语气直接、口语化，带有明显的负面色彩，常见于日常对话中对人的评价。

  Don't call me shallow just because I love shopping and makeup.

  别因为我喜欢购物和化妆，就说我shallow。

• slick

  Describes something skillfully produced, or a person's talk, as polished and impressive on the surface but hiding a lack of real substance or sincerity.

  形容某样东西做得娴熟、给人印象深刻，或形容人说话圆滑动听，但表面光鲜之下缺乏真正的内容或诚意。

  The ad felt slick, but it said nothing about the product's quality.

  这则广告显得很slick，却完全没说产品到底好在哪里。

• superficial

  Describes an examination, analysis or understanding that only covers the obvious surface and misses deeper details; more formal and neutral in tone than shallow.

  形容某种审视、分析或理解只停留在明显的表面，没有触及更深层的细节；语气比shallow更正式、更中性。

  The committee's superficial review missed the flaws hiding in the data.

  委员会的superficial审查没有发现数据里隐藏的问题。

All three mean lacking depth, but for different things. Shallow judges a person's character or mind as lacking depth; blunt and informal. Slick describes talk or style as polished and impressive but empty underneath. Superficial describes an analysis covering only the obvious surface, missing details.

这三个词在此义项上都表示“缺乏深度或实质内容”，但侧重点不同：shallow多用于直接评价一个人的性格或思想，slick多用于形容表演、风格或说话方式华丽好看却空洞，superficial则多用于形容分析、理解等只停留在表面。这里不比较shallow的“（水等）浅的”义，不比较slick的“光滑的；圆滑老练的”义，也不比较superficial的“表面的（如伤口）”义。

Compared meaning: a shallow area of water (noun).

比较义项：浅滩，水浅的区域（名词）。

• shallow 本词

  A general, everyday noun for an area where the water is not deep; often used in the plural 'the shallows' and in casual contexts like swimming or wading.

  泛指水不深的区域，是较通俗的日常说法；常用复数形式 the shallows，多用于游泳、涉水等日常语境。

  The water near the beach is shallow enough for children to stand.

  海滩附近的水浅到孩子们可以站得住。

• shoal

  A more specific, often nautical term for a shallow area with a sandbank beneath the surface, frequently mentioned as a hazard to boats or a habitat for fish.

  更专业、常用于航海语境的说法，指水下有沙洲的浅水区，常被提到是船只的航行危险或鱼类聚集的地方。

  The captain steered carefully to avoid the shoal near the harbor.

  船长小心驾驶，避开了港口附近的浅滩。

Shallow and shoal both mean an area of water that is not deep. Shallow is general, often plural 'the shallows', used for swimming or wading. Shoal is nautical: a shallow area with a sandbank, often a hazard to boats. Shallow as an adjective, not compared.

两词都指水深较浅的区域，但 shoal 更强调水下有沙洲、常与鱼群或航行危险相关，属于较正式或专业的用法；shallow 是更通俗、宽泛的说法，只强调水不深，常用复数形式 the shallows。这里不比较 shallow 作形容词表示“浅的”或比喻“肤浅的”的用法。