adj.因果关系的，前因后果的，原因的，表示因果关系的(连接词，如because)
n.表示原因的词[结构]

The causal link between smoking and lung cancer is well-established.
吸烟与肺癌之间的因果关系已被充分证实。
Regular exercise has a causal effect on improving cardiovascular health.
规律锻炼对改善心血管健康有因果性影响。
A lack of sleep can be a causal factor in decreased productivity.
睡眠不足可能是生产力下降的一个因果因素。
The study aims to identify the causal relationship between diet and obesity.
该研究旨在确定饮食与肥胖之间的因果关系。
The economist investigated the causal mechanisms behind economic growth.
经济学家研究了经济增长背后的因果机制。
Improper nutrition during childhood can have causal implications for adult health issues.
儿童时期的不当营养可能会对成年后的健康问题产生因果性影响。
The research failed to establish a clear causal connection between screen time and ADHD.
该研究未能确立屏幕时间和多动症之间明确的因果联系。
Increased educational attainment is often seen as a causal factor in reducing poverty rates.
教育水平的提高常被视为减少贫困率的一个因果因素。
The experiment was designed to isolate the causal variable affecting plant growth.
实验旨在分离出影响植物生长的因果变量。
The scientist proposed a causal theory to explain the extinction of the dinosaurs.
科学家提出了一种因果理论来解释恐龙灭绝的原因。