belie
/bɪˈlaɪ; bɪ`laɪ/ v
(pres p belying, pp belied) [Tn]
1 give a wrong or an untrue idea of (sth) 使人对於（某事物）产生错误的或不符合实际的想法
His cheerful manner belied his real feelings. 他那快活的样子掩饰了他的真实感情.
2 fail to justify or fulfil (a hope, promise etc) 不足以证明; 未能实现（希望、诺言等）
Practical experience belies this theory. 实际经验证明这个理论是错误的.