本期内容：

American officials complained about “simulated attacks” by Russian warplanes in the Baltic sea. During an American-Polish exercise on Monday, a Russian SU-24 attack aircraft approached the USS Donald Cook at “unsafe” speed. Yesterday a Russian jet came within 30 feet (9 metres) of the guided-missile destroyer. A similarly dangerous episode took place in the Black Sea in January.

词义解析:

Simulated attack: 模拟攻击
Baltic sea：波罗的海
Destroyer：驱逐舰
Episode：插曲