Narrow place in a passage or impediment in a process causing a slowdown.

瓶颈；妨害进度的因素。

A style of guitar playing in which an object (as a metal bar or the neck of a bottle) is pressed against the strings for a glissando effect.

樽颈吉他乐(演奏吉他的一种方法，使用一件物件如金属棒或樽颈等紧压弦线以增强滑音)。

To slow down because of a bottleneck.

(遇到瓶颈障碍而)减缓。