单词：grier
n. A measure equal to one tenth of a line.
n. Anything very small, or of little value.
单词：grier 相关文章
BARBARA KLEIN: Im Barbara Klein. STEVE EMBER: And Im Steve Ember with EXPLORATIONS in VOA Special English. This week, we learn about caves and their creatures, visit an archeological dig in Canada, and explore a house powered by the sun. (MUSIC) BARB
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