mother lode 主礦脈，資源的源頭，大量而重要的部分 the place where the largest amount of gold, silver, etc., in a particular area can be found; a major or profitable source or supply Examples: 1) Cairn Energy recently struck the mother lode of oil fields in India. 2) New York City is a mother lode of actors. (BBC, 2016/11/01) Republican presidential candidate Donald Trump has said he...Continue reading