于 is often used as a preposition such as “to”, “from”, “than”, “at”, “in” and “towards”.
Examples
- 四大于三 Four is greater than three.
- 明天的温度低于32度。Temperature tomorrow is lower than 32 degree.
- 他的父亲出生于1912年。His father was born in 1912.
- 姐姐很善于听取别人的意见。Sister is good at hearing other people’s opinions.
- 他们乐于帮助老人。They are delighted in helping old people.
- 爸爸妈妈苦于不懂英文。Parents suffering from not understanding English.
- 你对他说“不”等于你的工作没有了。Saying “no” to him is equal to giving up your work.
- 他的家坐落于山脚下。His house is located at the foot of the mountain.
- 常常跑步有益于身体健康。Jogging is beneficial to your health.
- 智慧来自于人民群众。Wisdom comes from the people.
- 千里之行，始于足下。A thousand mile journey begins with the first step.
- 还政于民。Return political power to the people.
- 你说的也适用于我。What you said is also applicable to me.
- 你的权利产生于民选。Your power is produced/derived from people’s election.
- 她说了“对不起”才免于一死。Because she said “sorry” was she exempted from death.
- 会说中文有助于在中国找工作。Speaking Chinese is helpful for jobs search in China