You pass the before method an optional symbol and a code block.
您向before方法传递一个可选的标志和一个代码块。
The symbol determines how often RSpec should execute the code block.
标志确定RSpec执行代码块的频率。
Tansmission system, receiver for transmission system, and method for detecting symbol information block.
传输系统，用于传输系统的接收机，和对符号信息块进行检测的方法。
That double block is the perfect symbol for the two superstars.
那两个盖帽是这两个超级巨星的完美诠释。
That double block is the perfect symbol for the two superstars.
那两个盖帽是这两个超级巨星的完美诠释。
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