precursor

 

precursor

= something that comes before another thing 

Some symptoms may be precursors to various health problems.

有些症狀可能是各種健康問題的先兆。

 

Mark noticed that frequent stomachaches were a precursor to his increased stress levels.

Mark 注意到，頻繁的胃痛是他壓力變大的先兆。

Mark thought that the changes in weather patterns could be precursors to natural disasters.

Mark 認為天氣型態的變化可能是自然災害的先兆。

The dark clouds were a precursor to the coming storm.

烏雲密布是暴風雨即將來臨的先兆。

Some synonyms and antonyms for "precursor" in English:

Synonyms:

Forerunner 

Predecessor 

Antonyms:

Result

Consequence

Outcome 

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Which of the following best describes the term "precursor"?

A) A final outcome that has been achieved.

B) A warning sign that indicates a future event.

C) A substance or entity that comes before and indicates the approach of something else.

D) An established fact that requires no further explanation.