a cold-blooded killer的用法和样例：
- Jayson comes to doubt himself, believing that his actions in Timor prove that he has become a cold blooded killer.
- She was rasied as a cold blooded killer, but as the story progresses you see her changing into a woman with more emotions.
- Deviation behavior will make a illiberal cold blood killer,the instability will , only one action make him rejected.
- This strain of wheat can grow during a cold spring.
- The bank robber drew a gun and shot the guard in cold blood.