There should be no sooty or black hair intermingled with any of the tan.
不应该有黑色的头发乌黑或与棕褐色的混合。
The belt may make a squealing noise and throw off sooty black particles of rubber.
传送带会发出刺耳的噪音并释放出乌黑的橡胶颗粒。
The belt may make a squealing noise and throw off sooty black particles of rubber.
传送带会发出刺耳的噪音并释放出乌黑的橡胶颗粒。
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