Sentence examples for this is the keystone from inspiring English sources

This is the keystone of the drone industry, both commercially and recreationally.

This is the keystone to ensure successful integration of biosimilar mAbs into the treatment of cancer.

Yes, it would be funnier if this was the Keystone XXXXL pipeline.

This collaborative approach to empowerment is the keystone to developing self-sufficiency in the clients.

Heart is the keystone of this story.

This dovetailing of core national interests is the keystone of American grand strategy in the Middle East along with the Israeli tie. 4. The mullahs' regime in Iran represents a common enemy to be contained, defanged and hopefully eliminated. 5. Terrorist groups threaten both countries.

Syria is the keystone of the Middle East.

Tourism is the keystone of the economy.

Because Syria is the keystone of the Levant.

Communication is the keystone of a company.

Corn is the keystone species in America.