A person who holds a hand over his mouth when he is talking is signaling that he is lacking in confidence.

一个人如果在谈话时总是用一只手捂着嘴，这就表明他缺乏自信。

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His teacher said that he was lacking in confidence.

他的老师说他缺乏自信。

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As a child he was seldom encouraged by his parents and so he grew up lacking self-confidence in his abilities.

小时候，他很少受到父母鼓励，从而对自己能力缺乏自信。

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Carlesimo said his team was lacking the same enthusiasm and confidence it had when he first took over.

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He is the second-eldest of Greenberg's five sons--all of whom work at the company--and is methodical and guarded, uneasy in the spotlight and lacking his father's abundant confidence.

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But he said he became suspicious of Mr Wilkinson, who he described as "desperately disorganised" and "lacking confidence", and on one of his visits secretly took a photograph of him.

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