audio data and transcript from CantoMap:
https://github.com/gwinterstein/CantoMap/
GPL-3.0
https://www.gnu.org/licenses/gpl-3.0.en.html

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粵語字典_(耶魯_數字).csv:
https://github.com/kfcd/yyzd
© 2009-2020 開放詞典
http://creativecommons.org/licenses/by/3.0/deed.zh_TW