名词
中文翻译：穿甲弹
同义词：
['armor-piercing projectile', 'armor-piercing bullet']
例句：
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1. The soldier used a special armor-piercing tracer to mark the enemy's position.
士兵使用一种特殊的穿甲引信来标记敌人的方位。
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2. The armor-piercing tracer was so bright that it could be seen from a distance.
这种穿甲引信非常明亮，可以远距离看见。
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3.The armor-piercing tracer helped the soldiers to locate the enemy quickly.
穿甲引信帮助士兵们快速定位敌人。