But this is important，in terms of train collisions and derailments, this would stop 2 percent of them, 2 percent.

这个很重要，就火车撞车和脱轨而言，这将减少2%，2%。

The Greek prime minister says an investigation indicates that Tuesday's deadly train collision was caused by human error.

希腊总理表示，一项调查表明，周二致命的火车相撞事故为人为错误导致。

Unions have rallied behind railway workers associations who stage rolling walkouts since the head-on train collision in northern Greece February 28 that left 57 people dead and dozens injured.

自2月28日希腊北部发生两列火车相撞事故以来，57人死亡，数十人受伤，工会一直支持铁路工人协会。