花象牙参Roscoea cautleyoides的花朵是乳白色的。
象牙也是雄象们决斗的武器,然而,乳白色的象牙也招致了很多更加危险、血腥的下场。
Males use the tusks to battle one another, but the ivory has also attracted violence of a far more dangerous sort.
而天然珍珠是白色、象牙色、粉色或黑色的,带有乳白色的光泽。
Pearls in nature come in white, ivory, pink and black with an opalescent glow.
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