precursor chemicals
易制毒化学品
The discovery of fire was a precursor to the development of civilization.
火的发现是文明发展的先驱。
Poor diet can be a precursor to many health problems.
不良饮食可能是许多健康问题的前兆。
The economic recession was a precursor to widespread unemployment.
经济衰退是大规模失业的前兆。
The sudden drop in temperature was a precursor to the snowstorm.
气温突然下降是暴风雪的前兆。
The artist's early sketches served as precursors to her final masterpiece.
艺术家早期的素描作品是她最终杰作的先驱。
Increased heart rate can be a precursor to a panic attack.
心率增加可能是惊恐发作的前兆。
The first signs of spring are precursors to warmer weather.
春天的第一个迹象是天气变暖的前兆。
The company's declining profits were a precursor to its eventual bankruptcy.
公司利润的下降是其最终破产的前兆。
The diplomatic talks were seen as a precursor to potential peace negotiations.
外交谈判被视为潜在和平谈判的前兆。
The early success of the team was a precursor to their championship win.
团队的早期成功是他们夺冠的先兆。
precursor chemicals
易制毒化学品
The discovery of fire was a precursor to the development of civilization.
火的发现是文明发展的先驱。
Poor diet can be a precursor to many health problems.
不良饮食可能是许多健康问题的前兆。
The economic recession was a precursor to widespread unemployment.
经济衰退是大规模失业的前兆。
The sudden drop in temperature was a precursor to the snowstorm.
气温突然下降是暴风雪的前兆。
The artist's early sketches served as precursors to her final masterpiece.
艺术家早期的素描作品是她最终杰作的先驱。
Increased heart rate can be a precursor to a panic attack.
心率增加可能是惊恐发作的前兆。
The first signs of spring are precursors to warmer weather.
春天的第一个迹象是天气变暖的前兆。
The company's declining profits were a precursor to its eventual bankruptcy.
公司利润的下降是其最终破产的前兆。
The diplomatic talks were seen as a precursor to potential peace negotiations.
外交谈判被视为潜在和平谈判的前兆。
The early success of the team was a precursor to their championship win.
团队的早期成功是他们夺冠的先兆。
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