The enemy's cannons in his fancy were not cannons, but pipes from which an invisible smoker blew puffs of smoke at intervals. 在他的想象之中，敵人的大炮不是大炮，而是煙斗，有一個(gè)望不見(jiàn)的吸煙者從煙斗中斷斷續續地吐出一串串煙圈。
My inspiration came from watching detailed videos of a smoke ring in action demonstrating stable movement, small size and the ability to contain particles within the structure. 我的靈感來(lái)自看詳細影片一個(gè)煙圈在行動(dòng)上表現出穩定的運動(dòng)，小尺寸和能力，以遏制粒子內部結構。
