He was born (on)2 January,1901,and died (on)15 August,1989.
（從最後一個例句可見，日期前麵的on有時可省略）
在表示空間的概念時，at和in的使用場合也不相同。一般說來，我們說in a try or a large city; at a small village or town。關於這一點，可參閱arrive at和arrive in一則。
He was born (on)2 January,1901,and died (on)15 August,1989.
（從最後一個例句可見，日期前麵的on有時可省略）
在表示空間的概念時，at和in的使用場合也不相同。一般說來，我們說in a try or a large city; at a small village or town。關於這一點，可參閱arrive at和arrive in一則。