[gāo xìng]
（愉快而兴奋） glad; happy; pleased; elated; joyful; cheerful
I'm very glad to see you.
我见到你很高兴。
He is sure to be pleased [happy] at the news.
他听到这个消息一定很高兴。
He cheerfully went off to school.
他高高兴兴地上学去了。
Tell Grandpa the good news so that he can share our joy.
快把这消息告诉你爷爷, 叫他老人家也高兴高兴。
He accepted the invitation with pleasure.
他高兴地接受了邀请。
They rejoiced too soon.
他们高兴得太早了。
You may go where you are willing to.
你高兴去哪儿就去哪儿。
You needn't go if you don't feel like it.
你不高兴去就甭去了。