雷定（？~？），阴平氐人，曹操与刘备汉中之战时，雷定率领氐族一万人响应马超，牵制曹军在下辨的主力。
西尔维猜测日食一定发生在亚历山大附近并且大约在同一时间托勒密·奥雷特斯死去。
Cauville reckons the solar eclipse must have occurred in Alexandria at around the same time that Ptolemy Auletes died.
埃雷里说：关上一扇门就如同经历一种缺失，而人们则愿意为避免这种确实感付出一定的代价。
"Closing a door on an option is experienced as a loss, and people are willing to pay a price to avoid the emotion of loss," Dr. Ariely says.
在博卡杜·阿克雷，像奥诺弗雷这样的牧场主们都认为这些措施一定程度了抑制了伐林活动。
In Boca do Acre, ranchers such as Onofre believe the measures are helping to slow the destruction.
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