He had a squeaky voice.

他的声音很尖。

《柯林斯英汉双解大词典》

Once a squeaky, geeky misfit kid himself, his inventing career began at the age of 16, when he devised a dynamic lighting system that could respond to sound.

他曾经是一个吱吱叫的，古怪不合群的孩子，他的发明生涯始于16岁，那时他设计了一种可以对声音做出反应的动态照明系统。

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Trevor imitated Annabel in a squeaky voice. "Oh I'm so worried."

特雷福学着安娜·贝利吱吱的嗓音，嘲讽地说，“我担心得要死。”

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They may also make a whistling or squeaky sound, called wheezing, when they breathe.

VOA: special.2009.07.28

"Let me tell you the real story on that one, " a squeaky voice interrupts.

CNN: AllPolitics - TIME This Week

It's unusual scrutiny for the Arizona senator, who has built his reputation as a squeaky-clean reformer.

NPR: McCain Denounces 'Times' Story on Lobbyist Ties

In this case, the tattoo-for-pay-gate they experienced means hiring instead a squeaky clean disciplinarian.

FORBES: For Ohio State's Urban Meyer, Success Could Bring Misery