sad 难过的
I was sad that she had to go.
知道她得走了，我心里很难过。
happy 高兴的
You don't look very happy today.
你今天好像不太高兴。
excited 激动的
I'm really excited at the prospect of working abroad.
我对有希望到国外工作着实很激动。
,happy,sad,
