Bisulfid
n. 二硫化物
🗣️ 情景例句
Protein, vitamins.
蛋白质， 维他命。
We think $ 87,000 per unit with a five percent discount for orders over 100.
我们减少到每台8。7万美元，订购超过100台给予5%的折扣。
Robert was delighted to see me and equally pleased with my little gift.
罗伯特见到我很高兴，对我的薄礼也感到满意。