smoke column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.
煙柱是由一個小火箭放出的，然後攝影技求出煙跡的運動。 - So intense was his penance that a smoke billowed from his head and the entire world was in the danger of annihilation.
他的修行功力十分強大，從他的頭上噴出的煙柱會使整個世界處於被毀滅的危險之中。
