The evening show was terrible, with hesitant unsure performances from all.

晚上的演出很糟，所有人都缩手缩脚，显得很不自信。

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His behaviour is an attempt to cover up his insecurities.

他的行为是想掩饰自己的不自信。

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"I was very unsure of myself after the divorce," she says, unconsciously sweeping back the curls from her forehead.

“离婚之后我变得非常不自信，”她边说边不自主地把额前的卷发往后捋了捋。

柯林斯例句

Say their stage fright , it is better to say no confidence.

以其说怯场, 不如说不自信.

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It also deflates our competitors if they already have doubts in themselves.

如果我们的对手本身就对他们的产品不自信的话,就会主动泄气.

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If I feel uncertain I will raise my voice.

当我感到不自信时,我提高我的嗓音.

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Faults: Lack of excessive energy, character.

缺点: 缺乏活力, 不自信.

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Therefore, man should be confident, or it will be the extravagance for mankind.

因此人活着就必须自信, 不自信是人消费不起的奢侈品.

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