The next day, Jo went to the river with Laurie to skate on the ice.

第二天，乔和劳里去河上滑冰。

youdao

So what do you think would happen in the winter if ice didn't float, in the Charles River.

所以，会怎么样，如果冬天查尔斯河的冰不浮起来？

youdao

The gold seekers were still building their boats. The Yukon River turned to ice.

夏天很快就过去了，而冬天随即而来，淘金者还在建造他们的船只，育空河就结冰了。

youdao

He was about half way across the river when the tree trunk moved suddenly, John fell from it onto the ice.

VOA: special.2010.06.26

The Yukon River turned to ice.Winter in this area was extremely cold.

VOA: special.2009.02.11

The ice over the river had melted when he reached it.

VOA: special.2010.06.26

Franklin Delano Roosevelt's uncle John was one of the founders of the Hudson River Ice Yacht Club in 1885, and his 48-foot Icicle is still on display in the Hudson River Maritime Museum in Kingston, N.

FORBES: Shiver Me Timbers

Heavy machinery was brought in to break up and remove ice from the river, so that boats and divers could get in, Sideras explained.

CNN: March 16, 2013 -- Updated 0041 GMT (0841 HKT)

The successful delivery of the serum was no foregone conclusion--temperatures of 50 or more below zero, blizzards, cracking river ice and winds that would suddenly hit a sled at 60 mph to 70 mph were everyday hazards.

FORBES: Going To The Dogs