她几年前曾遭遇精神崩溃，从那以后她一直怯生生的。

She had a sort of breakdown some years ago, and since then she has been very shy.

《柯林斯英汉双解大词典》

小孩子在陌生人面前常常是怯生生的。

Small children are often shy of anyone they do not know.

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我带着怯生生的喜悦朝堂皇的府第看去，我看到了一片焦黑的废墟。

I looked with timorous joy towards a stately house: I saw a blackened ruin.

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