The Internet architecture Board (IAB) is responsible for defining the overall architecture of the Internet, providing guidance and broad direction to the IETF.
互联网架构委员会(iab)负责定义整个互联网的架构，为IETF提供方向指引和全面的指导。
2
He seemed to be letting the crowd disperse before he turned toward the escalator; maybe he was about to board a train going the opposite direction.
看来，他是要让人群散尽后才转向那个电动扶梯；也许他是要上一趟开往相反方向的列车。
3
The division of labour was immediately decided: Mr Yang runs the board of directors and sets the strategic direction and Mr Amelio has operational control.