水看不见鱼的泪鱼在水的心里面
[shuĭ kàn bù jiàn yú de lèi yú zài shuĭ de xīn lĭ miàn]
'Water Doesn't See the Fishes' Tears, but It's Inside the Water's Heart.' This suggests a metaphorical relationship between water and fish, where feelings or pain might not be directly visible but are understood by those closely related or involved.