名词
中文翻译：Unknown
同义词：
['pear-shaped syringes', 'pear-shaped needles', 'pear-shaped catheters']
例句：
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1. We needto use a pear-shaped syringe to inject the medication into the patient's vein.
我们需要使用梨形注射器将药物注入患者的静脉。
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2. The nurse carefully inserted a pear-shaped syringe into the patient's arm.
护士小心地将一个梨形注射器插入患者的手臂。
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3.The doctor used a pear-shaped syringe to administer anesthesia to the patient.
医生使用一个梨形注射器给病人进行麻醉。