verb
to be dumbfounded; to be stupefied; to be stunned (syn.) 愣住
Examples (Wiktionary)
Mandarin
校长威严地宣布：“有谁带了BP机，马上交出来！”就像是搜查毒品和枪支弹药。大家呆住了，没有电蛐蛐的擡起头，脸上露出得意的微笑。带了电蛐蛐的不由自主地低下头，目光四处躲闪，像一群刚刚出洞的小老鼠。
校長威嚴地宣佈：“有誰帶了BP機，馬上交出來！”就像是搜查毒品和槍支彈藥。大家呆住了，沒有電蛐蛐的抬起頭，臉上露出得意的微笑。帶了電蛐蛐的不由自主地低下頭，目光四處躲閃，像一羣剛剛出洞的小老鼠。
xiào zhǎng wēi yán de xuān bù ： “ yǒu shéi dài le ＢＰ － jī ， mǎ shàng jiāo chū lai ！ ” jiù xiàng shì sōu chá dú pǐn hé qiāng zhī dàn yào ． dà jiā dāi zhù le ， méi yǒu diàn qū qu de tái qǐ tóu ， liǎn shang lù chū dé yì de wēi xiào ． dài le diàn qū qu de bù yóu zì zhǔ de dī xià tóu ， mù guāng sì chù duǒ shǎn ， xiàng yī qún gāng gāng chū dòng de xiǎo lǎo shǔ ．
The principal solemnly announced, "Whoever brought a pager must hand it over immediately!" It was just like a search for drugs, firearms and ammunition. Everyone was stunned. Those who did not have a beeper lifted up their heads, smiling smugly. Those who brought a beeper couldn't help but lower their heads, and their evasive eyes looked all over the place, like a mischief of little mice that have just come out of a hole.