### Chinese: 弹道导弹潜艇通常被称为“雷鸣潜艇”（Boomer submarine）。
### English: Ballistic missile submarines are often referred to as “<v>boomer</v> submarines” (Boomer submarines).
### Errors: There is a minor fluency/spelling error at "boomer" within <v></v>.

### Improved English: Ballistic missile submarines are often called “Boomer submarines”.
