常用字根 –ject=to throw 丢的意思
1. eject= e-(out) + -ject(throw) v. 射出(丢出去)
2. inject=in-+-ject, v. 注射(把药水丢进身体)
3. reject=re-+-ject, v. 拒绝(把东西丢回去)
4. object=ob-(against)+-ject, v. 反对(丢回去抵制)
5. project=pro-+-ject, v. 投影(把影像丢到前面去)
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