BEIJING -- Vice-Premier Li Keqiang has vowed to deepen reform and opening up to promote scientific development and the transformation of the economic development pattern, and to achieve sustainable and healthy economic growth.

Li made the remarks on Wednesday while chairing a conference on national comprehensive reform pilot areas.

China has made great achievements through 30-plus years of reform and opening up and it will further boost reforms at the current new starting point to ensure that the people can lead better lives, Li said.

"We are also aware that the current reforms have entered a 'fortified zone' and a 'deep-water zone'...we have to face the challenges and break all the systematic obstacles that block scientific development," Li said.