bass

Compared meaning: low-pitched, about sound or voice (adjective).

比较义项：（声音／嗓音）低沉的（形容词）。

• deep

  A general, everyday adjective for any low-pitched sound or voice; not limited to music and usable in almost any context.

  通用的日常形容词，可以形容任何低沉的声音或嗓音，不限于音乐场合，几乎在任何语境中都能使用。

  His voice grew unexpectedly deep as he entered puberty.

  他进入青春期后，嗓音出乎意料地变得低沉。

• bass 本词

  A more technical, musical term for the lowest vocal or instrumental register; typically collocates with words like voice, singer or note.

  更专业的音乐术语，指最低的声部或乐器音域；通常与voice、singer、note等词搭配使用。

  The choir needed a bass singer to balance the high sopranos.

  合唱团需要一位低音歌手来平衡高音的女高音声部。

Deep and bass both describe a low-pitched sound or voice. Deep is a general, everyday word for any low sound, not limited to music. Bass is a more technical, musical term for the lowest vocal or instrumental register, often paired with voice, singer, or note.

两词都可以形容低沉的声音或嗓音，但deep是日常泛用词，几乎可以修饰任何低沉的声音；bass是更专业的音乐术语，特指最低的声部或音域，常与voice、singer、note等搭配使用。这里不比较deep“（水、洞等）深的”这一空间义项，也不比较bass作名词时指“鲈鱼”或“低音乐器（贝斯）”的用法。