Helicene
螺烯
??? 情景例句
Rules are meant to be followed, not broken.
規(guī)則制訂出來是讓人遵守，而不是讓人破壞。
Who is speaking?I don't recognize your voice.
閣下是那一位？我聽不出你的聲音。
The dancer ran in a straight line, wagging from side to side.
跳舞的蜜蜂左右搖擺地沿直線飛。