| 单词 | trunking | 
| 释义 | Word Frequency trunking(ˈtrʌŋkɪŋ) noun 1.  telecommunications the cables that take a common route through an exchange building linking ranks of selectors  2.  plastic housing used to conceal wires, etc; casing  3.  the delivery of goods over long distances, esp by road vehicles to local distribution centres, from which deliveries and collections are made | 
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