Subject + 高兴 + 地 + Verb
高兴 (gāoxìng) is an adjective meaning "happy," "glad," or "pleased." It describes a feeling of joy or satisfaction, often in response to something specific. It can be used as a predicate (我很高兴), a complement (高兴地说), or in the common greeting 很高兴认识你 (nice to meet you).
收到你的礼物我特别高兴。
Shōudào nǐ de lǐwù wǒ tèbié gāoxìng.
I was especially happy to receive your gift.
很高兴认识你,以后多多交流。
Hěn gāoxìng rènshi nǐ, yǐhòu duōduō jiāoliú.
Nice to meet you; let's keep in touch from now on.
孩子们考完试都高兴得跳了起来。
Háizimen kǎo wán shì dōu gāoxìng de tiào le qǐlái.
The children were so happy after finishing the exam that they jumped up.