名词
中文翻译：针筒
同义词：
['needle barrel', 'syringe barrel例句：1. The doctor used the pin barrel to inject medicine into her arm.（医生用针筒给病人的手臂注射药物。）']
例句：
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1. The doctor used the pin barrel to inject medicine into her arm.
医生用针筒给病人的手臂注射药物。
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2.She carefully inserted the pin barrel into the bottle of water.
她小心地把针筒插入水瓶中。
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3.The nurse quickly removed the pin barrel from the patient's arm and started administering anesthesia.
护士迅速从病人的手臂上拔出针筒，开始给病人注射麻醉药。