When the female stranger left the room and the two men remained sitting together, the volunteer's stress levels did not rise. However, when the volunteer was left alone with the female stranger, his cortisol levels rose.
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Ice sheets retreated and sea levels rose.
冰盖消退，海平面上升。
Firms' debt levels rose, increasing the volatility of earnings.
公司债务水平上升，提高了收益的不确定性。
This evolved into two types after a group colonised Sumatra via glacial land bridges, and then became cut off as sea levels rose.
随后，巽他云豹又通过冰河陆桥迁移到了苏门答腊，但海平面上升导致的地理隔绝致使其演化成为两种不同类型的云豹。
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