It is very necessary to set up a dangerous icewarning system for the offshore oil and gas production and ice management for the protection from the ice in winter in Bohai Sea areas.
建立渤海冬季油气生产危险冰情报警系统和防冰减灾的海冰管理方法是很有必要的。
2
The man yelled a warning to the boys on ice.
那个人大声向冰上的男孩们警告。
3
A notice was placed by the river bank warning people to keep off the thin ice.