Hard water furred the kettle.硬水使水壶生了垢.Is the kettle boiling?壶里的水开了吗？I'll put on the kettle for tea. Or boil up some coffee.我要烧壶水沏茶，或者煮些咖啡。The cordless kettle may now be a fixture in most kitchens.无绳电热水壶现在可能是多数厨房的固定设...
有必要让公众在充分知情的状况下展开辩论。There needs to be a properly informed public debate.我认为有必要考虑到各种可能性。I think one's got to consider all the possibilities.我认为我们有必要走开一下去考虑这件事。I think we need to go away and think about this....