山谷：两侧有山的低洼地带，常有河流流经。
"The village is located in a beautiful valley. 那个村庄位于一个美丽的山谷中。"
"Farmers in the valley grow a variety of crops. 山谷中的农民种植各种作物。"
峡谷：尤指较深且陡峭的山谷。
"A deep valley cut through the mountains. 一个深谷穿越了山脉。"
"They explored the valley by hiking. 他们通过徒步探索山谷。"
心中低谷：比喻经历的人生挫折或低迷期。
"After losing his job, he went through a valley. 失业后，他度过了一段人生的低谷。"
"She found strength during the valley she faced. 她在经历低谷时找到了力量。"