Fatal airline accidents are mercifully rare, so when two aircraft of the same new model crash in succession, killing a total of 346 people, it is an exceptional tragedy. That is the case with Boeing’s new 737 Max, a single-aisle jet that is an update of its best selling model. It was grounded last week by regulators around the world — belatedly including the US Federal Aviation Administration.
航空公司发生致命空难事故是罕见的（这一点值得庆幸），所以当两架相同型号的新型飞机接连坠机、造成总共346人遇难时，那是一场异常的悲剧。波音公司(Boeing)的新型737 Max飞机就属于这种情况；这是一款单通道喷气式飞机，是该公司最畅销机型的更新版本。它上周被世界各地的监管机构下令停飞，包括姗姗来迟的美国联邦航空管理局(FAA)。
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