单词 | tunnel |
释义 | tun·nel ![]() n. 1. An underground or underwater passage. 2. A passage through or under a barrier such as a mountain. 3. A tube-shaped structure. v. tun·neled, tun·nel·ing, tun·nels or tun·nelled or tun·nel·ling v.tr. 1. To make a tunnel through or under: tunneling the granite. 2. To produce, shape, or dig in the form of a tunnel: tunnel a passageway out of prison. v.intr. To make a tunnel. [Middle English tonel, barrel, tubular net, from Old French tonnel, diminutive of tonne, tun, possibly of Celtic origin.] tunnel·er, tunnel·ler n. ![]() |
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