in+ject

• in-前缀，表示‘进入’或‘向内’
• ject来自拉丁语‘jacere’，意为‘投掷’或‘扔’

in-（进入）+ ject（投掷）→ 注射，注入

ejecteject

e-（出）+ ject（投掷）→ 弹出，驱逐

projectproject

pro-（向前）+ ject（投掷）→ 投射，计划

injectioninjection

in-（进入）+ ject（投掷）+ -ion（名词后缀）→ 注射

rejectreject

re-（回）+ ject（投掷）→ 拒绝

1. 释义 1注射，注入

   The doctor will inject the vaccine into your arm.

2. 释义 1注射，注入

   He injected a sense of urgency into the meeting.

3. 释义 1注射，注入

   The new policy was designed to inject more capital into the economy.