深的英文表达如下：
1. Deep：这是最基本、最常用的表达方式，可以用于描述物体、颜色、声音、情感等。
- The lake is deep.（湖很深。）
- Her voice is deep and soothing.（她的声音低沉而悦耳。）
2. Profound：用于形容思想、理论或影响的深远性。
- His speech had a profound impact on the audience.（他的演讲对观众产生了深远的影响。）
- The book explores profound questions about the meaning of life.（这本书探讨了关于人生意义的深层问题。）
3. Intense：用于描述情感、体验或经历的强烈程度。
- They had an intense argument.（他们发生了激烈的争论。）
- The intense heat made it difficult to breathe.（强烈的炎热使呼吸变得困难。）
4. Penetrating：用于形容洞察力或声音的穿透力。
- Her penetrating gaze made him uncomfortable.（她锐利的目光让他感到不舒服。）
- The sound of the siren was penetrating and could be heard from miles away.（警报器的声音尖锐刺耳，可以听到几英里之外。）
5. Bottomless：用于形容深不可测或无穷的事物。
- The ocean seemed bottomless as far as the eye could see.（尽管眼前看不到海底，但海洋似乎深不可测。）
- The pain in his heart felt bottomless.（他心中的痛苦感觉无尽无绝。）