bottlenecks的中文意思、音标与词形变化

n. 瓶颈( bottleneck的名词复数 ); 瓶颈路段（常引起交通堵塞）; （尤指工商业发展的）瓶颈; 阻碍

n a narrowing that reduces the flow through a channel n the narrow part of a bottle near the top v slow down or impede by creating an obstruction v become narrow, like a bottleneck