In the Zhou dynasty, King Wen of Zhou added a sixth string for his son King Wu of Zhou to encourage his army to fight with the Shang.

周文王为他的儿子周武王增加了第六根琴弦，鼓励他的军队与商朝作战。

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Later, in Zhou Dynasty, King Wen of Zhou added a sixth string for his son.

后来到了周朝，周文王为儿子加了第六弦。

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In his hands he had the A-B-C book for his son, but the old coat was gone.

他手里拿着给儿子的识字课本，但是那件旧外套不见了。

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Once,on a business trip to London, Charles Homer bought a set of drawing examples for his son to copy.

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But I feel the same thing often when my son brings his friends, maybe that I've known for a long time.

但我也感觉得到,尤其是我儿子带朋友回来时，也许我早认识了。

耶鲁公开课 - 政治哲学导论课程节选

For example, if your son got in a fight with his sister and you're very concerned about him,

例如，如果你的儿子跟他的妹妹打了起来，你对他很是担心，

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Cablevision's Chuck Dolan wants a dynasty for his son and maximum value for shareholders.

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Suharto has promised to eliminate tax and credit privileges for his son's much-criticized National Car Project.

CNN: Now The Hard Part

He remodelled a luxury family home and bought a bungalow for his son in the same street.

BBC: Leeds butcher Gary Turner jailed for tax offences