The new ice 4 rink just opened.

那个溜冰场是新开张的。

youdao

Ice the trouble spot with an ice pack or a bag of frozen veggies for 20 minutes, every 4 to 6 hours.

每隔4到6个小时，用冰袋或者蔬菜冷冻袋冰敷伤口20分钟。

youdao

This year has seen no such opposite of a perfect storm, yet the summer sea-ice minimum is a mere 4% bigger than that record.

而尽管并没有观测到如此不利的情况，今年海冰的极小值也仅仅比那年的记录大了4%。

youdao

"Many people have stood on the ice 4, 000m (13, 000ft) above the North Pole, " he said.

BBC: Voyage to the 'real' North Pole

According to the US National Snow and Ice Data Center (NSIDC), Arctic sea-ice covered 4.5 million sq km (1.7 million sq miles) at its lowest point on 12 September last year.

BBC: Arctic team targets key ice data

It has an average elevation of 3, 000 m (9, 900 ft) and the ice is typically 4 km thick.

BBC: Internet to reach South Pole