They approached the ferocious animal with caution.
他们小心翼翼地接近这只凶猛的动物。
CAUTION: Animal experiments show that repeated exposure to the waste oil used will lead to skin cancer.
注意事项：动物实验表明，重复接触用过的废油后会引发皮肤癌。
CAUTION: Animal experiments show that repeated exposure to the waste oil used will lead to skin cancer.
注意事项：动物实验表明，重复接触用过的废油后会引发皮肤癌。
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