Periods of abstaining from food, often for religious observance.

• Times of limited eating for health or medical reasons.

禁食的时期，常为宗教目的。

• 因健康或医疗原因而限制饮食的时段。

Abstains from food, often for religious or health reasons.

• Causes another to abstain from eating.

（他/她）禁食，常出于宗教或健康原因。

• 使他人禁食。

Express trains that stop only at principal stations.

只在主要车站停靠的快车。

Multiple instances of the acronym FAST in various fields.

• May refer to a trauma ultrasound exam, a firefighter rescue team, or free ad-supported streaming television.

缩写 FAST 的复数用法，涵盖不同领域。

• 可指创伤超声评估、消防员援助与搜索小组，或免费广告支持的流媒体电视。