speak without reserve

• 直言不讳

speak without reserve的用法和样例：

例句

1. Spoken without reserve; candid.
   坦白的毫无保留地说的; 坦率的
2. He spoke without reserve (ie freely) of his time in prison.
   他毫无保留地(直言不讳地)述说了他在监狱中的事。