Down adj. 不高興的;情緒低落的
unhappy; unable to feel excited or energetic about anything
I feel a bit down today.
我今天心情不太好。
Hey, what's the matter? You look down.
喂,怎么了?你看起來不高興。
She's been really down since she left home.
自從離開家后,她就一直悶悶不樂。
Down adj. 系統停止運轉
The system was down all morning.
整個早上系統都是壞掉的。
Down payment 首付款
I am saving for a down payment on a house.
我正在攢錢付首付買房子。
Be down to sb 由某人負責
After his father retires, it will be down to him to lead the company.
他的父親退休后,將由他來領導公司。
Upside down 上下顛倒的(地)
Turn the bottle upside down and shake it.
我瓶子翻轉過來,搖一搖。
Let sb. down 讓某人失望,辜負某人
I was counting on John to come, but he let me down.
我指望著John來呢,但她讓我失望了。