In this case, Uranium-Lead Dating was used to establish that half of the sandstone in the samples was formed at the same time the granite in the Appalachian Mountains was formed.
在这种情况下，铀铅定年法被用来确定样本中一半的砂岩是在阿巴拉契亚山脉花岗岩形成的同时形成的。
True or false: If a man you've been dating for a year and a half hasn't gotten around to popping the question, patience is your best bet - pressure will surely scare him off.
正确或错误：如果一个男人同你交往了一年半，但是还没有向你提出求婚，那么耐心是你最好的应对方法，因为给他施加压力必然会吓跑他。
In some cultures, half the employees are dating, or married to, the other half and it's not a problem — at least not yet.
在有些公司文化中，有一半员工正在与另外一半员工约会，或已经结成夫妻，所以办公室恋情不是问题——至少现在还不是问题。
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