cheerfully
/ˈtʃɪəfʊlɪ/adverb
1- in a way that displays happiness or optimism开心地, 愉快地; 乐观地：
he was whistling cheerfully.
他愉快地吹着口哨。
1.1
- in a way that inspires feelings of happiness令人愉快地, 令人高兴地：
a cheerfully decorated tram car.
一辆装饰靓丽的电车。
1.2
- readily and willingly乐意地, 欣然地, 自愿地：
I could cheerfully have strangled her.
我真想掐死她。