今天我们要学的词是 reserve。Reserve 做为形容词，是后备的意思。

Israel is preparing to mobilize 30,000 reserve troops. 以色列正准备动员三万预备役。The British defense secretary proposed to allow reserve soldiers to take up to 40 days a year for training. 英国国防大臣建议，允许预备役士兵每年最多参加40天的训练。美国受到飓风桑迪袭击后，Three army reserve units are mobilized to support relief efforts in disaster areas. 三支陆军预备役部队被调动起来，支援灾区救援。This is the first time Army Reserve Soldiers have been activated for a natural disaster under the 2012 defense authorization act. 这是根据2012年国防授权法案，第一次因为自然灾害调动陆军预备役。好的，今天我们学习的词是 reserve, reserve, reserve....