日期：
来源：雅诚德英语网
In the past ten years there have been improvements in mountain-climbing techniques as well as in mountain-climbing equipment.
在过去的十年里，登山技术和登山设备都有了改进。
In the past ten years there have been improvements in mountain-climbing techniques as well as in mountain-climbing equipment.
在过去的十年里，登山技术和登山设备都有了改进。