世界多国暂停和项目检查安全性 BBC News with Iain Purdon Japan has asked for international help as it battles to cool nuclear reactors at a power station damaged in Friday's earthquake and tsunami. Nuclear regulators in the United States...
今天我们要学的词是screen。 Screen, 有检查的意思。All women over 50 should be screened for breast cancer regularly, 凡是五十岁以上的妇女都要定期进行乳腺癌的检查。 美国全国铁路客运公司将首度开始对乘...