1.inject的基本意思是“注射”,指把液体通过注射器或其他仪器注入另一物体。引申可表示为“给某人灌通思想、精神等”。
2.inject只用作及物动词,接名词或代词作宾语。
3.inject在非正式书面语体里,可用来引出直接引语,意思是“顺势问道”。

inject into(v.+prep.)
▲inject sth into sth
1.把…注入身体 make (a liquid) enter a part of the body
The doctor injected glucose into his patient's veins.医生将葡萄糖注入病人的静脉。
The doctor injected the sedative into his body.医生给他注射镇静剂。
The nurse injected penicillin into his veins.护士把青霉素注射到他的静脉中。
2.给…添加 add sth needed to sth
She injected a remark into the conversation.她在谈话中插入一句话。
The arrival of our friends with several crates of beer injected new life into the flagging party.我们几个朋友带着几箱啤酒来到这里,给沉闷的聚会增添了新的生气。
The birth of the child may inject some new life into the family.孩子的出世会给家庭增添新的活力。
Try to inject a bit of enthusiasm into your performance.设法在你的表演中投入一点热情。
◇ 用于be ～ed 结构
Enormous sum of money is injected each year into teaching.每年都有大量资金投入到教学中。

inject with(v.+prep.)
用…注入 give a part of the body a liquid by means of a special medical needle
▲inject sb with sth
She injected the patient with penicillin.她给病人注射了青霉素。
The lab assistant injected the rat with the new drug.实验室助手给老鼠注射了那种新药。
◇ 用于be ～ed 结构
We must be injected with antibiotics for our protection.为预防起见,我们都必须注射抗生素。

用作及物动词
▲S+～+n./pron.
The doctor has injected him under the skin.医生已给他打了皮下针。
◇ 用于be ～ed结构
This drug can't be swallowed; it has to be injected.这药不能吞服,只能注射。
▲引出直接引语
“Do you know the cause of the failure?”“No,” Mr. Smith injected,“What about the carelessness?”“你知道失败的原因吗?”“不知道。是否由于粗心的缘故?”史密斯先生顺势问道。