If you single or double click and nothing happens, or if you double click and it only registers a single click.

如果你点击或者双击没有反应，或者如果你双击同时只是注册一个单点击。

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Since negative returns are at play, a loss aversion mechanism kicks in, and people will actually go double or nothing in order to keep from losing thereby taking more risk.

FORBES: By Stephen Horan, PhD, CFA, CIPM

There is nothing just or fair in a double standard.

CNN: Transcript: House Judiciary Committee