chest

Compared meaning: the front upper part of the body (noun).

比较义项：胸部（身体前部上方，名词）。

• breast

  Refers to a bird's or animal's front body, especially in meat cuts like chicken breast, or is used poetically for a person's chest; not the everyday word for a person's own chest.

  指鸟类或动物的胸部，尤其用于肉类切块（如鸡胸肉），或用于文学语境中指人的胸部；不是日常口语中指人体胸部的常用词。

  The chicken breast was cooked with garlic and lemon.

  这块鸡胸肉是用大蒜和柠檬烹调的。

• chest 本词

  The plain, everyday word for the front of a person's body between the neck and stomach; not normally used for animals or for cuts of meat.

  是日常英语中指人体颈部与腹部之间前部的普通用词；通常不用于指动物或肉类切块。

  He held the heavy box against his chest as he walked upstairs.

  他抱着沉重的箱子上楼时，把箱子紧贴在胸前。

Breast and chest can both mean the front upper body, but breast is mainly used for birds or animals (chicken breast) or literary language, not for a person's everyday chest. Chest is the plain, everyday word for it. Breast's other sense is not compared here.

这两个词在“胸部”这一意义上容易混淆，但用法不同：breast 多用于鸟类或动物的胸部（例如鸡胸肉），或用于文学语境中指人的胸部，日常口语中较少用来指人的胸部；chest 则是日常英语中指人体胸部的常用中性词。这里不比较 breast 的其他义项，例如女性的乳房。