n.脚蹬横木；横档；梯级

Andy Rundle said."And let this be a lesson to everybody: Somebody's tried it, and it's not a good idea. 它对每个人而言都上了一课：有人已经尝试过那种方法了，那不是一个好主意。”

"It has too many false positives to be useful," says Rundle, a professor of physics, geology and engineering at U. “氡气预测系统有太多虚假的确实性，这导致它已经没有用处了。”

Gallery: Travel Photo Tips Sunlight bursting through storm clouds cast golden light on Mount Rundle in Alberta, Canada. 意译：旅游的顶尖图片集。阳光爆发通过风暴云层投下金色光亮在rundle山，亚伯达，加拿大。

Sunlight bursting through storm clouds cast golden light on Mount Rundle in Alberta, Canada. 意译：旅游图片摄影忠告。阳光突破风暴云投掷在加拿大阿尔伯塔金光在亚伯达伦德山。

After the English test Taiwanese students went to one of the RUNDLE MALL’s coffee to ate our lunch and talk about our host family. 经过了一整个上午的分班考试后，台湾的学生一起相约到一家咖啡厅外吃各自寄宿家庭准备的午餐，大家一边吃一边讨论著自己的寄宿家庭。