Ignoring feelings of tiredness knocks our body clocks out of kilter.忽视疲劳感会打乱我们的生物钟。Some pulsars keep time better than the earth's most accurate clocks.某些脉冲星发送脉冲比地球上最精确的时钟都准时。He also repairs clocks and watches.他也修钟表。...
我用短波收音机收听最新的战事新闻。I use the short-wave radio to get the latest war news.他把收音机的音量开得很大，好让自己不再想这件事。He put the radio on loud to stop himself thinking about it.制造商正在研制价格更便宜的新一代数字收音机。Manufacturers are working on a new generatio...