It's human nature for parents to be fond of their children.
父母爱孩子是人类的.天性。
It is human nature that all of us should be fond of beauty.
爱美是人的天性，每个人天生都追求美。
To be fond of art has been the human's tradition since the ancient time.
人类自古以来就有爱好艺术的`传统。
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Tom was saying you might be keen on yoga.
汤姆说你可能爱好瑜伽功。
They tend to be keen on volume of effort and overlook efficiency.
他们倾向于努力的量而忽略了效率。