In the same way as other algorithms, the use of efficient board representations is a tradeoff between complexity, speed, and space requirements.
而在使用相同方法的其他算法中，采用有效的棋盘表现方法是一个介于复杂性，速度和空间需求之间的权衡。
2
The man could barely put the phone down after telephonic board meetings ended at Goldman before speed-dialing Rajaratnam to (allegedly) give him the news.
Column in the same horizontal line, the high speed rail board installation is very easy, convenient, otherwise there will be a phenomenon of screw dislocation, can not be installed.