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1. The doctor advised against any unnecessary distention of the jugular vein, as itcould lead to complications.
医生建议避免对颈静脉进行不必要的扩张，因为这可能导致并发症。
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2. During surgery, the surgeon carefully monitored the patient's blood pressure and avoided unnecessary distention of the jugular vein.
在手术期间，外科医生仔细监测患者的血压，并避免对颈静脉进行不必要的扩张。
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3. After a long day at work, she felt the need for some rest and decided to lie down without causing anyunnecessary distention of her jugular vein.
工作了一整天后，她感到需要休息，决定躺下来，以免对她的颈静脉造成任何不必要的扩张。