Anyone with heart, lung, or circulation problems should seekmedical advice before flying.
任何有心、肺或血液循环问题的人都应该在飞行前寻求医生建议。
《柯林斯英汉双解大词典》
2
After all, it is often more acceptably in our society to be sick and to seekmedical help than it is to admit that one can not cope with the stresses of life.
毕竟，在我们的社会中，生病和寻求医疗帮助往往比承认一个人不能应付生活的压力更容易被接受。
3
Stay alert to serious symptoms, such as chest pain or pressure, severe shortness of breath or dizziness, or faintness, and seekmedical attention immediately.