shrilly

基本解释

An instant after he issued with a lighted fagot, which he threw into the darkness, whistling shrilly.
工夫不大，他拿了一束点着的干柴跑出来，把它扔在黑暗里，同时吹起了尖声的口哨。
dict.cn
At that high altitude, suddenly, very close to you was a rattler, shrilly rattling his tail, giving a warning.
在那么高的海拔，突然离你很近的地方有一条响尾蛇，高频地摇动着他的尾巴，发出了警告。
blog.sina.com.cn
This explains why North Korea has reacted so shrilly to America's moves against the North's banking assets in Macau.
这样就解释了为什么美国对朝鲜在澳门的资产动手时朝鲜的反应如此歇斯底里。

China's diplomatic style has evolved since the early 1990s, when its language was far more shrilly anti-American.
ECONOMIST: China
When I did, I found myself in a shrilly lit, tiled space (reminiscent of a butcher shop) decorated here and there with pictures of Pope John Paul II.
FORBES: Editor's Note
So, less shrilly, did the Dutch, Swedes and Austrians.
ECONOMIST: Agenda 1999