pinwheel

英 [ˈpɪn.wiːl]      美 [ˈpɪn.wiːl]
  • n. 纸风车;轮转焰火
pinwheel
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pinwheel (n.)
also pin-wheel, 1690s, "a wheel in the striking train of a clock in which pins are fixed to lift the hammer," from pin (n.) + wheel (n.). Fireworks sense is from 1869.
1. A rough approximation would be the dual spirals in pinwheel.
大致近似于纸风车上的双重螺旋线.
2. Single pale blue, may show dark pinwheel marking when grown cool ; 4 - 6 per peduncle, very floriferous.
单瓣淡蓝色花, 当天气转凉时或许会出现深色的线条缟花,每个花梗有4-6朵花, 很会开花.