客机失事后,调查人员首先封存了黑匣子和维修记录。Kèjī shīshì hòu, diàochá rényuán shǒuxiān fēngcún le hēixiázi hé wéixiū jìlù.After the passenger plane crashed, investigators first sealed the black box and maintenance records.
直升机在山区失事,救援队立即出发。Zhíshēngjī zài shānqū shīshì, jiùyuán duì lìjí chūfā.The helicopter crashed in the mountains, and the rescue team set off immediately.
渔船失事的消息一传来,大家都很担心。Yúchuán shīshì de xiāoxi yī chuánlái, dàjiā dōu hěn dānxīn.As soon as news came that the fishing boat had been wrecked, everyone was very worried.