tars的音标？

Around 280 degrees C, Volatile gases and flammable tars are released.在大约摄氏280度, 挥发性的气体和可燃焦被放出.Tars could be seen walking towards the harbor.可以看到水手正在走向港口.Shiny tiny tars in our hands.指间的星砂徐徐坠下,温润明亮....

n.焦油，沥青，柏油( tar的名词复数 )...