他把手臂伸过来时，阿兹拉克便将皮下注射器刺进他的左臂。
As he reached over, Azrak slid a hypodermic syringe into his left arm.
他举起皮下注射器检查药剂量。
用后即丢弃的物品，一次性物品用后即可丢弃的物品，如纸制尿布或皮下注射器。
An article, such as a paper diaper or hypodermic syringe, that can be disposed of after one use.
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