slick

Compared meaning: smooth on the surface (adjective).

比较义项：光滑的（形容词）。

• slick 本词

  Describes a surface that is smooth and slippery, often because it is wet, icy or oiled; usually a negative or hazardous quality, typically used for roads or surfaces.

  形容表面光滑且打滑，通常是因为潮湿、结冰或涂了油；一般带有负面或危险的意味，常用于形容道路或表面。

  The wet pavement was slick, and she nearly slipped while jogging this morning.

  潮湿的人行道很滑，她今早慢跑时差点摔倒。

• sleek

  Describes something smooth and glossy, often shiny or polished, giving an impression of elegance, sophistication or speed; usually a positive quality, typically for hair, cars or design.

  形容光滑而有光泽、显得精致或时尚，常给人优雅、精致或流畅高效的印象；一般带有正面意味，常用于形容头发、汽车或设计。

  Her sleek black ponytail shone under the bright salon lights.

  她那光滑亮丽的黑色马尾辫在美发店明亮的灯光下闪闪发光。

Both can describe a smooth surface. Slick means smooth and slippery, often wet, icy, or oiled, usually negative, as for roads. Sleek means smooth and glossy, giving a polished, elegant look, usually positive, as for hair or design. Other senses are not compared.

这两个词都可以形容表面光滑，但语感不同：slick强调因潮湿、结冰或涂油而打滑，常带负面或危险的意味；sleek强调光泽亮丽、线条流畅，多用来形容外表精致有型，带正面意味。此外，slick还有“油嘴滑舌的”（形容人）或“熟练巧妙的”（如一场漂亮的表演）等含义，这里不作比较；sleek也可用来形容身形或造型“流线型的”，这里同样不涉及。

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

  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 本词

  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。