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重点讲解：
1. take action 采取措施；实施行动；
We had to take action to protect the proprietary technology.
我们必须采取措施保护专利技术。
2. thousands of 数以千计的；数千；
Thousands of people attended the funeral.
数千人参加了葬礼。
3. combine with 与…结合；联合；
Conclusion: It was emphasized that CT diagnosis should combine with clinical features.
结论：强调诊断结合临床病史和检查的重要性。
4. take part in 参与；参加活动；
You can take part in activities from canoeing to bird watching.
你可以参与从划独木舟到观鸟等各种活动。
