Sinopec's board chairman, Fu Chengyu, has apologized for the accident.

中石化董事长傅成玉已就爆炸事故进行了道歉。

Tjibbe Joustra is the safety board's chairman. He said progress has been made since the downing of flight MH17.

朱斯特拉（Tjibbe Joustra）是荷兰安全委员会主席。他说，自MH17航班失事以来，调查已经取得了进展。

He told Jobs that he could stay on with the title of board chairman and be a product visionary with no operational duties.

他告诉乔布斯，乔布斯可以继续留在苹果，担任董事长兼产品架构师，但不履行任何运营职责。

Federal Reserve board chairman Ben Bernanke was cautiously optimistic about the economy at the annual meeting of the America economic association in Philadelphia today.

今天，美联储主席本·伯南克在费城举行的美国经济协会年度会议上表示，对美国经济持审慎乐观的态度。