n.

1. （热带）丛林，密林[C][U]
   Advance in the jungle was very slow.

   在丛林中行进很慢。

2. 乱七八糟的聚会，杂乱的一堆[C]
   The jungle of tax laws is a headache.

   繁复的税则令人头痛。

3. 生存竞争激烈残酷之处[C]
   He's from Chicago; he grew up in a real jungle.

   他是从芝加哥来的；他从小生长在生存竞争激烈的地方。

   the jungle of business

   商业的激烈竞争

n.

1. an area of land with dense forest and tangled vegetation, typically in the tropics.
2. a very competitive or complex situation or place.
3. (also jungle music) a style of dance music with very fast electronic drum tracks and slower synthesized bass lines.