bā bǐ tuǒ / shì / yī zhǒng / zǎo qī de / zhèn jìng / cuī mián yào / xiàn zài / yǐ / jiào shǎo / shǐ yòng

巴比妥是一种早期的镇静催眠药，现在已较少使用。

Barbital is an early sedative-hypnotic drug and is now rarely used.