Whenever they say goodbye to each other or quarrel, however, the room owners or their neighbours know that they are not married, but living together on a trial basis.
然而他们分手或者吵架的时候，房东或者邻居们就知道他们没有结过婚，只是尝试着住在一起而已。
Over 1,500 dog owners applied to participate in the trial of rapamycin, which has its roots in a series of studies in mice, the first of which was published in 2009.
1500多名狗主人申请参与雷帕霉素试验，这项试验基于一系列对小鼠做的研究，第一项研究结果发表于2009年。
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