MACAO, Dec. 20 (Xinhua) -- Chui Sai On, chief executive of the Macao Special Administrative Region (SAR), said here on Saturday that he will spare no effort in implementing the principles of "one country, two systems", "Macao people governing Macao" and a high degree of autonomy.

Chui, in his inaugural address, also stressed the importance of full, comprehensive and correct understanding and implementation of the Basic Law.

"We will unswervingly support the national sovereignty, security and interests, and safeguard the long-term prosperity and stability of the Macao SAR," Chui said.

He said Macao, a family member of China, has secured the foothold with the support of the motherland since its return 15 years ago.

In Macao, said the chief executive, the principle of "one country, two systems" is demonstrating its tremendous advantages and vitality.

"It proves that if our motherland fares well, so will Macao," he added.

Chui was sworn in as the fourth-term chief executive of the Macao SAR on Saturday.