till 4 
(tĭl)
(tĭl)n.
Glacial drift composed of an unconsolidated, heterogeneous mixture of clay, sand, pebbles, cobbles, and boulders.
[Origin unknown.]
| 单词 | till |
| 释义 | till 4 (tĭl)n. Glacial drift composed of an unconsolidated, heterogeneous mixture of clay, sand, pebbles, cobbles, and boulders. [Origin unknown.] |
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