n. 高兴；快活
1.The characteristic I like best in him is his cheerfulness.
他的愉悦气质是我最喜欢的特点。
2.Show cheerfulness even when you don't feel it.
即使没有感觉到也要表现出自己的愉快心情。
3.Maintaining a balance is the best way to cheerfulness.
平衡是人心情开朗的最佳方法。
4.Perhaps my cheerfulness rests on a slender hope.
也许我的快乐是建筑在渺茫的希望之上的。
5.He said, with a great show of cheerfulness: "I bet there's been pirates on this island before, boys."
他露出充满兴趣的样子说：“伙计们，我敢说这个岛上以前一定有过海盗。”
6.This is something like your paradise, 'said she, making an effort at cheerfulness.
“这有点像你的天堂了，”她说，尽力愉快起来。
7.Maintaining a balance is the best way to cheerfulness.
平衡时人心情开朗的最佳方法。
8.Cheerfulness is health.
欢乐就是健康。