a.

1. 精心制作的；精巧的；详尽的
   They made elaborate costumes for the play.

   他们为这出戏精心制作戏装。

2. 复杂的
3. 煞费苦心的，辛勤的
   She made elaborate preparations for the party, but no one showed up.

   她为了聚会费心准备，但是一个人也没来。

   She made an elaborate study of Shakespeare's works.

   她刻苦研究莎士比亚的著作。

vt.

1. 精心制作
   They elaborated a plan of study.

   他们仔细制订了学习计划。

2. 详尽阐述，发挥
   Some of these points will be elaborated in the following chapter.

   其中几点将在下一章作详细阐述。

3. 由简单成分合成为（复杂有机物）

vi.

1. 详细说明；详尽计划[（+on/upon）]
   The minister did not elaborate on his plan.

   部长没有详细说明他的计划。

2. 变得复杂

adj.

v.

1. develop or present in further detail.
   ▸ (often elaborate on) add more detail to something already said.
2. Biology  (of a natural agency) produce (a substance) from its elements or simpler constituents.