willingly
adv. 欣然地；愿意地，乐意地
例句
People would willingly pay more for better services.
有好一些的服务，人们是愿意多花钱的。
《牛津词典》
When her mother suggested that she stay, Alice willingly acquiesced.
当她的母亲建议她留下时，艾丽丝欣然默许。
《柯林斯英汉双解大词典》
"Willingly," said the tailor, '"that is child's play!"
“我很乐意，”裁缝说，“那是小菜一碟！”
