自20世纪60年代世界进入电子时代以后，各国在通讯、交通运输以及在人员交流等方面都产生了飞跃发展。
Since the 60s of 20th century, the world has entered the electronic age. Countries had a giant leap forward in the development of communications, transportation, and personnel exchanges.
上个世纪七十年代以来，新安全观的研究已使人们对安全的认识产生了质的飞跃，人们开始了真正意义上的安全研究。
Since 70's of last century, the new security view research has caused people to have leaps in essence to the safety's understanding, people start the safety research of the true significance.
摩托车惊险表演者evelKnievel去世﹐他在70年代因表演一系列壮观飞跃而成为国际明星。
Motorcycle daredevil evel Knievel has died. He became an international star in the 70s when he staged a number of spectacular jumps.
摩托车惊险表演者evelKnievel去世﹐他在70年代因表演一系列壮观飞跃而成为国际明星。
Motorcycle daredevil evel Knievel has died. He became an international star in the 70s when he staged a number of spectacular jumps.
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