trap 3 
(trăp)
(trăp)n.
Any of several dark, fine-grained igneous rocks often used in making roads.
[Swedish trapp, from trappa, step, from Middle Low German trappe.]
| 单词 | trap |
| 释义 | trap 3 (trăp)n. Any of several dark, fine-grained igneous rocks often used in making roads. [Swedish trapp, from trappa, step, from Middle Low German trappe.] |
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