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- They are building a submarine cable tunnel. 他们正在建设一条海底电缆隧道。
- They are digging through the hill to make a tunnel. 他们正在凿山建一条隧道。
- This layer of rock contains a lot of flint. 这一岩层中有大量燧石。
- The kid dug a tunnel in the sand. 小孩在沙堆里挖了一个地道。
- They were tunneling under the river. 他们在河下挖掘隧道。
- The workers are tunneling the hill. 工人们在凿山开隧道。
- The inner layer of the wall of a spore. 孢子内壁孢子壁的内层
- The two lanes merge going into the tunnel. 两条车道会合后引入隧道。
- There is a fine layer of dust on the desk. 桌子上有一层薄薄的尘土。
- The truck cleared the tunnel safely. 卡车安全地通过了隧道。
- He has to stoop to get through the tunnel. 他得弯下腰走过地道。
- The roar of the train reverberated in the tunnel. 火车的轰隆声在隧道里回荡。
- The middle, usually fleshy layer of a fruit wall. 中果皮果皮中间通常含肉较多的那一层
- The bottom layer is a mixture of sand and clay. 最下面的一层是沙和泥的混合物。
- A fine layer of dust covers everything. 所有的东西都盖了一层薄薄的灰尘。
- The prisoner escaped by digging an underground tunnel. 囚犯挖了一条地道逃跑了。
- A layer, as of doubled-over cloth or of paperboard. 一层一层，如折叠过的布料或纸板的
- A surface, layer, or mass of frozen water. 冰面冻结的水的面、层或块
- The roof of the tunnel caved in (on the workmen). 隧道顶坍塌(压住工人).
- A thin layer of bone, membrane, or other tissue. 骨骼、粘膜或其它组织的薄层
