上海龙凤1314　　There's no need to be so unfriendly towards them.

上海龙凤1314　　没必要对他们这么不客气。

　　She has a very formal manner, which can seem unfriendly.

　　她的举止很是郑重其事，有可能会显得不友好。

　　His tone was curt and unfriendly.

上海龙凤1314　　他说话的语调粗暴无礼。

　　Use more eco-friendly materials, and less of it.

　　使用更加环保的材料，并尽量少用。

上海龙凤1314　　Study on Preparation and Properties of Eco-friendly Functional Cotton Fiber with Selective Oxidation

　　选择性氧化法制备环境友好型功能棉纤维研究

上海龙凤1314　　Environmental protection and development of the eco-friendly fabric softening agent

　　环境保护和环保型织物柔软剂的发展探讨