indentation /ˌɪndɛnˈteɪʃən/

• 1. 

  N-COUNT An indentation is the space at the beginning of a line of writing when it starts further away from the edge of the paper than all the other lines. 行首空格

• 2. 

  N-COUNT An indentation is a shallow hole or cut in the surface or edge of something. 缺口

  例：

  Using a knife, make slight indentations around the edges of the pastry.

  用刀绕馅饼边沿刻出小缺口。