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- Any of a large class of compounds, including the hydroxides and oxides of metals, having a bitter taste, a slippery solution, the ability to turn litmus blue, and the ability to react with acids to form salts. 碱，盐基一种有许多化合物的化学物，它含有金属氢氧化物和金属氧化物，带有苦味，溶液较滑，能使石蕊试纸变蓝，并能与酸反应生成盐
- The clear water mirrored the blue sky. 清澈的水中映出蔚蓝的天空。
- any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water. 各种水溶性的化合物，能使石蕊变蓝，与酸反应形成盐和水。
- any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water 各种水溶性的化合物，能使石蕊变蓝，与酸反应形成盐和水
- This cloth has a pattern of blue and white squares. 这种布有蓝白格子的图案。
- He fell down the stairs and was all black and blue. 他从楼梯跌下而青一块紫一块了。
- England are playing in the blue and white strip. 英格兰队穿著蓝白色运动衣进行比赛。
- He dresses in a blue serge suit. 他穿着兰色的毛哔叽套服。
- Her baby has bonny and bright blue eyes. 她的孩子有一双美丽而明亮的蓝眼睛。
- The sun glare out of the blue sky. 太阳从蓝天中发出耀眼的光。
- I lost a white handkerchief with a blue border. 我丢了一块带蓝色花边的白手绢。
- That jumper sets off the blue of her eyes. 在这件毛衣衬托下，她眼睛的蓝色显得更漂亮了。
- Barry only visits his parents once in a blue moon. 巴里很难得去看望他父母一次。
- Mary wore such a pretty blue suit to go away. 玛丽穿着十分漂这时的蓝衣服度蜜月。
- The sky was a clear blue over our heads. 我们头顶上是蔚蓝的天空。
- The coverlet was painted in blue. 床罩是兰色的。
- She likes to wear expensive blue underwear. 她喜欢穿昂贵的蓝色内衣。
- Examples are litmus and phenolphthalein. 例如石蕊和酚酞。
- Mrs White always talks a blue streak. 怀特太太总是一开口就滔滔不绝。
- Neutral reaction by litmus indicating paper. 石蕊试纸呈中性反应。
