罪魁祸首 (zuì kuí huò shǒu): The main culprit / The principal offender — Meaning & Stroke Order

After investigation, he turned out to be the main culprit of this accident.

After investigation, the excessive use of plastic products is considered the main culprit of ocean pollution.

Don't you understand yet that procrastination is the main culprit behind your project's failure?

The main culprit of environmental pollution is the exhaust gas emitted by factories.

The main culprit of this team conflict is definitely not poor communication, but a lack of mutual trust.

The main culprit of the economic recession is actually the sudden disruption of the global supply chain and geopolitical tensions.

The primary culprit of online fraud is often those who deceive others using false information.

Stop making excuses; you yourself are the main culprit for being late to this date.