A number of suites of Carboniferous, middle-lower Jurassic and lower Cretaceous hydrocarbon source rocks were developed in the basin groups in the Paleo-Asian and Tethyan structural confluence area.

古亚洲与特提斯构造交汇带盆地群发育石炭系、侏罗系（中下统）、白垩系（下统）等多套烃源岩，具有厚度大、分布广、有机质丰度高的特点。

youdao

The most hopeful development is the success of other river-basin organisations like the Nile and the Mekong groups.

最有希望的进展是其他一些河流流域机构的成功，如尼罗河和湄公河的团体组织。

youdao

Themost hopeful development is the successofother river- basin organisations like the Nile and the Mekong groups.

最有希望的进展是其他一些河流流域机构的成功，如尼罗河和湄公河的团体组织。

youdao

Indigenous groups in the Pastaza River basin near the Ecuador border have been complaining for years about the pollution and the failure of successive governments to address it.

NPR: Peru Declares Amazon Oil Contamination Emergency

"This petition should be a wake-up call to those claiming that the Columbia Basin salmon can be recovered without significant change, " said Rob Masonis of American Rivers, one of the groups that filed Wednesday's petition.

CNN: River watch: Is Columbia tapped out?