The abortion arose from an accidental fall.

流产是由于(孕妇)不慎摔倒所致。

youdao

Even to those who had been confident of the eventual triumph of the West, the fall of the Berlin Wall was surprisingly accidental.

甚至那些曾经对最终胜利信心十足的西方人，对柏林墙的倒塌也倍感意外。

youdao

Balance weight set free fall emergency braking device, which can realize auto control load loss protection, when the wellhead end accidental loss of load, balance weight free fall.

平衡重设置自由落体紧急制动装置，可实现井口端意外失载后平衡重自由落体坠落不能人控，却能自控失载保护的万无一失。

youdao

"Throughout my examinations I could find no evidence of injuries that would suggest an accidental cause of death such as a fall, " he said.

BBC: Stuart Hazell leaves his partner's house on 8 August 2012

This restriction has been established to avoid the possibility of an accidental pointing error causing too much light to fall upon an instrument.

BBC: Close up on Mercury