他没有尝试着掩饰或隐瞒自己的感受。
He didn't attempt to dissimulate or conceal his true feelings.
研究显示，尤其是女士，想用微笑去掩饰发生在自己身上的不好的事情，或者是一些消极的心情，但是当别人与你谈话的时候，却非常容易看得出来那些你特意隐瞒的东西。
Studies show that women, in particular, tend to smile in order to mask bad news or negative emotions, and people pick up on this very quickly.
以其他方法掩饰、隐瞒犯罪的违法所得及其收益的性质和来源的。
covering up or concealing by any other means the nature or source of the illegally obtained proceeds and the gains derived therfrom.
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