I wear these trunks because they have a streamline effect in the water.我穿这条泳裤是因为它在水中有一种流线效果。He loved the sleek/smooth/flowing contours of the car.他喜欢这辆车的流线外形。A contoured mouse is shaped to provide a better fit for the keyboarder's hand.更适合键盘使用者手形的流线鼠标面世了。