a column of smoke的用法和樣例：
例句
- A column of smoke is established with a small rocket then photographed to determine movement of the trail.
煙柱是由一個(gè)小火箭放出的，然后攝影技求出煙跡的運動(dòng)。 - A column of black ash and steam rises over the village of Capelo on the Azores island of Faial.
一個(gè)由蒸汽和黑灰組成的煙柱沖天而起，籠罩在法亞爾的亞速爾群島上的卡佩羅村上空。
