Definition: unhappy or worried because something unpleasant has happened Level: A2
我的妹妹丢了她的玩具，现在她很不高兴。
My sister lost her toy, and now she is ___upset.
别难过，一切都会好起来的。
Don't be ___upset. Everything will be okay.
看到小狗受伤，我感到非常难过。
I felt very ___upset to see the puppy hurt.
