down除了向下的意思還有什么意思

　　Down through the years this town has seen many changes.

　　這些年來這座城市發生了許多變化。

　　Building a new road here will force house prices down.

　　在這里修建一條新道路將使房價下跌。

　　At the end of the day we were  20 down.

　　一天下來我們少了20英鎊。

　　The system was down all morning.

　　系統整個上午都無法運行。

　　The name has come down from the last century.

　　這名稱是從上個世紀流傳下來的。