After six Eurostar trains broke down in or near the tunnel that runs under the English Channel, the system has been suspended while engineers troubleshoot the electrical problems thought to have been brought on by condensation.

VOA: standard.2009.12.21

By building certain political institutions that would channel the flawed, imperfect human nature toward the good.

通过建立某种政治机构,引导有缺陷的，不完美的人性向好的方面发展。

哈佛公开课 - 幸福课课程节选

By building certain political institutions that would channel the flawed, imperfect human nature toward the good.

通过建立某种政治机构,引导有缺陷的，不完美的人性向好的方面发展。

哈佛公开课 - 幸福课课程节选