drops blue curacao 两滴蓝香橙
Add four drops of red food coloring to the water above the hot cup and four drops of blue food coloring to the water above the cold cup.
从热杯子上方向水中加四滴红色食用色素，从冷杯子上方往水中加四滴蓝色食用色素。
Do partial water changes. Add 2-5 drops per gallon of Methylene Blue.
局部换水。添加亚甲基蓝，每加仑水添加2 - 5滴。
On the remote western edge of Uganda the land suddenly drops down into the western arm of the Great Rift Valley to reveal the vast expanse of Lake Albert and the blue mountains of Congo beyond.
在乌干达遥远的西部边区，突然之间大地陷入了东非大裂谷（Great Rift）西翼的怀抱，绵延广阔的阿尔伯特湖（Lake Albert）就藏在山谷之中，它的外面就是刚果的蓝山山脉。
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