全部相似的叶，通常沉水的，具丝状的裂片。
Leaves all similar, usually submerged, with filiform segments.
早晨的时间过去了——沉黑的水不住地流逝。
如果这银器暗淡的很厉害的话，你需要重新加热下小苏打和水的那个混合物，反复刚才的步骤几次就可将所有暗沉去除了。
If the silver is badly tarnished, you may need to reheat the baking soda and water mixture, and give the silver several treatments to remove all of the tarnish.
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