介词大约于
副词大约; 近似
1. (置于某个年份之前，表示不确定)大约，大概
Circa is used in front of a particular year to say that this is the approximate date when something happened or was made.
e.g. The story tells of a runaway slave girl in Louisiana, circa 1850.
故事大约发生在1850年，讲的是路易斯安那州一个逃跑的年轻女奴。
1. circa
1. Taking HK's overheating gangster flick scene circa 1987 and turning it into a certified tearjerker was quite a feat.
2. Tune sheet for a circa 1877 Swiss musical box with Chinese melodies.
3. Her exceptional figure transformed her into a queen of the sexually liberated film era circa 1972.
4. It once seemed he would never live down his peanut butter soup, circa 1985.
5. It was circa 1986, not long after the film version won major Academy Awards.
6. The play starts circa the year 32 BC while Wang is still a carefree young teenager at ease in the natural scenery of Hubei.
7. A unified kingdom was founded circa 3150 BC by King Menes, giving rise to a series of dynasties that ruled Egypt for the next three millennia.