He's too shy to ask her out.

他太腼腆，不好意思约她外出。

《牛津词典》

She was too shy to ask anyone for help.

她太腼腆，不愿向任何人求助。

《牛津词典》

If you are too shy to say anything in front of people, you can use it.

如果你因为太害羞而不敢在众人面前说话，你可以用下它。

youdao

But he says in fact, sharks are very shy creatures that do not like to attack humans.

VOA: special.2009.04.03

They differ according to their IQs; whether they're aggressive or shy; whether they're attracted to males, females, both or neither; whether they are good at music; whether they are politically liberal or conservative.

他们的智商也不同,他们自信还是害羞,他们是否喜欢男人,女人,都喜欢,还是都不喜欢,他们是否擅长于音乐,他们是政治上的自由派还是保守派

耶鲁公开课 - 心理学导论课程节选

If you are going to be shy in another country, you're not going to learn another language.

如果你在另一个国家会感到害羞，那你就别学另一种语言了。

在英语系国家 - SpeakingMax英语口语达人

"I was ashamed, too shy to tell him I didn't know how to pray, " Leuco wrote.

CNN: The 'cold call' Pope rings again

And, as a good lawyer, the GC is never shy to share his or her opinion.

FORBES: How Your General Counsel Sees Business Blind Spots

Successful businesswoman shy to throw down and take their seat at the table.

FORBES: Why Women Need To Stop Feeling