[usually before noun](of eyes or the way they look at somebody眼睛或眼神)seeming to notice things about another person that would not normally be noticed, especially in a way that makes that person feel anxious or embarrassed锐利的;逼人的;尖利的
She looked at me with piercing blue eyes.她用一双敏锐的蓝眼睛盯着我。🔊🔊
a piercing look洞悉一切的目光
[usually before noun](of sounds声音)very high, loud and unpleasant尖厉的;刺耳的synonymshrill