As we finish up the initial breadth of the curriculum (making sure each HSK character has at least one word, to help with better learning all characters; we got about 280 left to go), we plan to go back and start filling in other more-common words in the curriculum, using the HSK word list as a guide. E.g., 地方 and 当然 are HSK-2 and HSK-3 words respectively, and would be good initial candidates when we do that work later this year!