break through
definitions
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to succeed in overcoming a difficulty or obstaclezh: 突破
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to make a sudden and significant improvement or discoveryzh: 取得重大突破
examples
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The team managed to break through the enemy's defenses.
团队设法突破了敌人的防线。
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Scientists finally broke through in their research on cancer.
科学家们终于在癌症研究上取得了突破。