2) He observed someone open the door.
他看见有人开门。
3) He heard me opening the door.
他所见我开门。
4) answer the doorbell
听见门铃声去开门
5) forest area development
山地开发
1.
In view of achieving the balance between economic benefits from forest area development and impacts on ecological environment,this paper introduces the approach for developing the software for analyzing the economic and ecological benefits of forest area development and puts forward the methods of using GIS technique to set up relevant indicators.
针对山地开发中经济效益和生态影响之间的平衡要求,介绍了山地开发经济、生态效益分析的软件实现方法,提出了利用GIS方法获取各项指标的方法;通过分析为山地开发的可行性提供参考。
6) cultivating hilly land
山地开垦
补充资料：听见
1.听到。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条