intravenously
/ˌɪntrəˈviːnəsli/
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Into or within a vein. Intravenous usually refers to a way of giving a drug or other substance through a needle or tube inserted into a vein.
adverb [方式副词] 静脉注射地;通过静脉
Premature babies have to be fed intravenously. 早产儿必须通过静脉输入来喂食。