Foamed butyronitrile coating, providing the best ventilation, comfortableness and flexibleness.发泡丁腈涂层, 提供最佳的透气性, 舒适、灵活.The stress of teaching lies in pertinence, flexibleness, for manipulation and utility.教学方法重点体现针对性,灵活性...

挠性，柔软性，易弯性...

flexibleness的音标：flexibleness的英式发音音标为：[fleksəbl'nəs]flexibleness的美式发音音标为：[fleksəbl'nəs]...