mill·stone 
(mĭlstōn′)
(mĭlstōn′)n.
1. One of a pair of cylindrical stones used in a mill for grinding grain.
2.
a. A source of worry or distress: a responsibility that became a millstone.
b. An obstacle to success. See Synonyms at burden.
| 单词 | millstone |
| 释义 | mill·stone (mĭlstōn′)n. 1. One of a pair of cylindrical stones used in a mill for grinding grain. 2. a. A source of worry or distress: a responsibility that became a millstone. b. An obstacle to success. See Synonyms at burden. |
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