north vietnam造句

1、McCain was shot down over North Vietnam and was held as a prisoner of war under brutal conditions.
麦凯恩在越南北部被击中，成为战俘，并忍受残酷恶劣的战俘生活条件。

2、The taxon was previously known from North Vietnam and Northeast India.
该种的分布原来只知道在越南北部和印度东北部。

3、By 1975, when North Vietnam tried another massed armored invasion, several key things had changed.
到1975年，当北越试图再次发动大规模的装甲入侵时，多种关键因素已经发生了变化。