词汇	clear section
释义	clear section 净断面；井巷有效使用的横断面。
随便看	the tourism system the tourism value The tour is poorly planned the tourista The tourist answered reverently the tourist attractions the tourist authenticity experience factors The tourist carried a pack on his back The tourist center city system the tourist circle the tourist environment the tourist flows the tourist history the tourist industry The touristis a Hungarian The Tourist Product the tourist proses the tourist resources niche The tourists are sitting on a sylvan glade the tourist season The tourists have run short of water The tourist sources structure The tourists signaled the driver to pull over The tourists will tarry at an inn the tourist trade