No. 63 in Chinese
于
"于" means "at," "in," "on," "to," or "than," depending on context.
In a sentence
他出生于1990年。
He was born in the year 1990.
In this sentence, '于' acts as a preposition indicating 'at' or 'in' with regard to time.
决定权在于你。
The decision lies with you.
Here, '于' is part of the phrase '在于', indicating 'lies in', showing the dependency or location of an abstract concept.
这个消息对我们于事无补。
This information does not help us at all.
In this idiomatic context, '于' reflects a more literary or formal register, meaning 'with regard to' or 'to' in expressing the context of the action.
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