5 sentences

1. 尼古丁是一种兴奋剂。

   ní​gǔ​dīng shì yī​zhǒng xīng​fèn​jì.

   Nicotine is a stimulant.

   Source: CCMatrix

2. 有些人比其他人对兴奋剂更敏感。

   yǒu​xiē​rén bǐ qí​tā rén duì xīng​fèn​jì gèng mǐn​gǎn.

   Some people are more sensitive to stimulants than others.

   Source: CCMatrix

3. 咖啡中的咖啡因是一种众所周知的兴奋剂。

   kā​fēi zhōng de kā​fēi​yīn shì yī​zhǒng zhòng​suǒ​zhōu​zhī de xīng​fèn​jì.

   Caffeine in coffee is a well-known stimulant.

   Source: CCMatrix

4. 含咖啡因的饮料等兴奋剂可以延缓和扰乱睡眠。

   hán kā​fēi​yīn de yǐn​liào děng xīng​fèn​jì kě​yǐ yán​huǎn hé rǎo​luàn shuì​mián.

   Stimulants such as caffeinated beverages can delay and disrupt sleep.

   Source: CCMatrix

5. 咖啡因是世界上消耗最广泛的兴奋剂，而咖啡是其最大的饮食来源。

   kā​fēi​yīn shì shì​jiè​shang xiāo​hào zuì guǎng​fàn de xīng​fèn​jì, ér kā​fēi shì qí zuì​dà de yǐn​shí lái​yuán.

   Caffeine is the most widely consumed stimulant in the world, and coffee is its biggest dietary source.

   Source: CCMatrix