crystal clear

• 1. 

  ADJ Water that is crystal clear is absolutely clear and transparent like glass. 明澈的

  例：

  The cliffs, lapped by a crystal-clear sea, remind her of Capri.

  清澈透明的大海拍打着峭壁,让她想起卡普里岛。

• 2. 

  ADJ If you say that a message or statement is crystal clear, you are emphasizing that it is very easy to understand. 清楚易懂的 [强调]

  例：

  The message is crystal clear – if you lose weight, you will have a happier, healthier, better life.

  这意思很清楚–如果你减肥的话，你会过上更快乐、更健康、更美好的生活。