- 推荐网络例句
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Who are at high risk of developing anaemia?
谁是高风险的发展贫血？
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After 5 minutes, we all sat in the sofa.
5分钟后，我们大家都坐在沙发上。
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six-bar mechanism ; kinetic characteristics ; analytic method ; motion simulation
传统的平面连杆机构运动分析方法有图解法、实验法和解析法。
Don't
stop moving...