khác máu tanh lòng
Meaning
2 senses
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A saying suggesting that people who do not share blood ties often have different or alien hearts.
vi Người ta thường bảo khác máu tanh lòng.
en People often say that those with no blood ties have alien hearts.
The act of treating one another harshly because there are no biological or blood ties between them.
vi Họ đối xử với nhau như người khác máu tanh lòng.
en They treat each other harshly as if they have no blood ties.