名词
中文翻译：陆战队
同义词：
['landing force', 'ground force', 'infantry unit']
例句：
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1. The elite sniper team is the backbone of our army's combat capability.
精英狙击队是我们军队战斗力的核心。
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2. The landing force successfully landed on the enemy's unprepared beach.
登陆部队成功地登陆了敌人的未准备海滩。
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3. The infantry unit was deployed to secure the border against incursions.
步兵单位被部署到边境地区以防御入侵。