be ready beforehand

• prep. 事先准备好

be ready beforehand的用法和样例：

例句

用作介词 (prep.)

1. He prepared his paper beforehand.
   他事先准备好了论文。
2. When a computer is used to solve a problem, a programme of instructions must be prepared in advance.
   当用计算机解题时，必须事先准备好指令程序。