downbeat

adj.

消沉的，悲观的，抑制的；

n.

强拍；下降；

复数：downbeats

1. The overall mood of the meeting was downbeat.
   整个会场的气氛是沉闷的。
2. The economy might confound downbeat expectations in the coming months.
   在接下来的几个月里，经济形势可能会让持悲观预期的人困惑。

Mechanism of downbeat nystagmus
The mechanism of downbeat nystagmus.
Downbeat nystagmus: a type of central vestibular nystagmus.
Downbeat nystagmus: aetiology and comorbidity in 117 patients.
Downbeat nystagmus associated with dolichoectasia of the vertebrobasilar artery
Intermittent downbeat nystagmus due to vertebral artery compression.
Treatment of downbeat nystagmus with 3,4-diaminopyridine: a placebo-controlled study.
4-Aminopyridine improves downbeat nystagmus, smooth pursuit, and VOR gain
The effects of baclofen and cholinergic drugs on upbeat and downbeat nystagmus.
Three-dimensional eye position and slow phase velocity in humans with downbeat nystagmus