[with obj.]surprise or impress (someone) greatly 使惊讶 you never fail to astonish me. 你总是让我吃惊。 [with obj. and clause]it astonished her that Mrs Browing could seem so anxious. 勃朗宁夫人竟显得如此焦急,这使她很惊讶。 [as adj. astonishing]an astonishing achievement. 惊人的成就。
early 16th cent. (as astonished, in the sense 'stunned, bewildered, dismayed'): from obsolete astone 'stun, stupefy', from Old French estoner, based on Latin ex- 'out' + tonare 'to thunder'