JECT

JECT

JECT comes from jacere, the Latin verb meaning "throw" or "hurl".如reject, eject, inject

interject: 刚刚看一位是互相throw，看了解释才知道不是这样的，主要是用来表示打断对话，不过是善意的，并不会打断思路。

conjecture: to guess

projection

trajectory

TRACT

TRACT comes from trahere, the Latin verb meaning "drag or draw".

traction

retract: re词根

protract

intractable