It has no land to defend; no police to enforce law and order; it does not have subjects, bound by a clear cluster of rights, obligations and cultural signals.

这里无疆可守、无警力强制执行法律和命令；甚至无一套清晰权责与文化特征约束的国民。

youdao

Nine days after the tsunami, there is still no clear number for the number of the people who have died on this remote cluster of more than 550 islands, of which only three dozen are inhabited.

海啸已经过去整整9天，但岛上丧生的确切人数仍然不清楚。 安达曼和尼科巴群岛由550个岛屿组成，其中只有不到40个的岛上有人居住。

youdao

Fuzzy cluster can make the sedimentological information concealed in the data to be clear and white.

但模糊聚类能使隐藏在这些资料中的沉积学信息清楚、白化。

youdao

"Our study showed for the first time a clear difference between oxygen and air in the treatment of acute cluster headache.

VOA: standard.2009.12.17