inject
/ɪnˈdʒekt/verb
with obj.
1
- drive or force (a liquid, especially a drug or vaccine) into a person or animal's body with a syringe or similar device注射（药物、疫苗等）：
the doctor injected a painkilling drug.
医生注射了止痛药。
1.1
- administer a drug or medicine to (a person or animal) in this way给…注射药物：
he injected himself with a drug overdose.
他给自己注射了过量毒品。
1.2
- no obj. inject oneself with a narcotic drug, especially habitually（尤指习惯性）给自己注射致幻毒品：
people who want to stop injecting.
想停止自我注射毒品的人。
1.3
- introduce (something) into a passage, cavity, or solid material under pressure（往管道、空腔、固体材料中）注入：
inject the foam and allow it to expand.
注入泡沫材料使之膨胀。
1.4
- Physics introduce or feed (a current, beam of particles, etc.) into a substance or device【物理】（往物质、装置中）注入或射入（电流、粒子束等）。
1.5
- place (a spacecraft or other object) into an orbit or trajectory将（宇宙飞船等）射入轨道（或弹道）：
many meteoroids are injected into hyperbolic orbits.
许多流星体被射入双曲线轨道。
2
- introduce (a new or different element) into something, especially as a boost or interruption（尤指为加强或干扰）插入（新或不同成分）：
she tried to inject scorn into her tone.
她试图在语气里加点儿轻蔑。
2.1
inject something with
imbue something with (a new element)使充满（新成分）：he injected his voice with a confidence he didn't feel.
他使自己的声音充满着其实自己并未感到的自信。
派生词
injectable
adjective & noun词源
late 16th cent. （in the sense 'throw or cast on something'）： from Latin inject- 'thrown in', from the verb inicere, from in- 'into' + jacere 'throw'.