动词
中文翻译：使变黑
同义词：
['darken', 'darken', "darken例句：1. The sun's rays have a way of bisulcating the earth's surface.（太阳的光线有一种方式能使地球表面变暗。）"]
例句：
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1. The sun's rays have a way of bisulcating the earth's surface.
太阳的光线有一种方式能使地球表面变暗。
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2.The paint has begun to bisulcat the walls.
油漆已经开始使墙壁变暗了。
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3. As the night fell, the sky turned into a deep blue, bisulcated by the moonlight.
随着夜幕降临，天空变成了深蓝色，被月光照亮而变得深沉。