Then they flew over the Charles River.

他们又到查尔斯河的上空。

Other investors included Charles River Ventures and Sigma Partners.

其他投资商还包括查尔斯河风险投资公司和西格玛合作伙伴。

All these efforts have resulted in a more swimmable Charles River.

而这些种种努力已成功提升查理斯河的亲水性。