a. 愉快的
s full of high-spirited delight
1. Don't be so gleeful. It's not a good thing.
别这么兴奋 这不是好事
2. A person might be unable to disguise her glee, while another person might have to pretend to be gleeful, if she is in disguise.
有的人可能会露出掩饰不住的偷笑 而另一个人可能得假笑 以维系伪装
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