During the study period, ST-elevation heart attacks declined by 62%, but the death rate among people who had these severe heart attacks did not drop.

研究期间，ST段抬高型心肌梗死下降62%，但是发生这些严重心肌梗死人们的死亡率没有下降。

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The experimental results show that the embedded watermark is robust against the attacks such as frame drop, swap and collusion.

对于丢帧、帧重组以及共谋攻击有很强的鲁棒性。

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Those with my age children, their school under the flood attacks, also faces collapse, is about to drop out of school.

那些和我同龄的孩子们，他们的学校在这次洪水的袭击下，也面临垮塌，即将失学。

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Those with my age children, their school under the flood attacks, also faces collapse, is about to drop out of school.

那些和我同龄的孩子们，他们的学校在这次洪水的袭击下，也面临垮塌，即将失学。

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