18个宇航员在四次飞行任务中遇难，苏联和美国各占两次，还有更多人死于地面事故。
Four missions have killed 18 astronauts between them, two each from the Soviet and American programmes, and more have died in accidents on the ground.
十九年前，几乎就在今天，在一次可怕的地面事故中，我们丧失了三名宇航员。
Nineteen years ago, almost to the day, we lost three astronauts in a terrible accident on the ground.
坎塔斯航空公司空客A380引擎爆炸，脱落残骸急冲地面，飞机被迫紧急迫降。事故疑为原油泄漏引起。
An engine failure on a Qantas Airbus A380, possibly caused by an oil leak, sent debris hurtling to the ground and forced an emergency landing.
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