“唯恐”的英语可以翻译为：[法] in fear，for fear that，lest ...

艾滋病是所有人唯恐避之不及的东西。The universal bogey is AIDS.我们赶着往前走,唯恐会迟到.We hurried along for fear we should be late.我们从他窗前经过时, 放轻了脚步, 唯恐打扰他.When we passed his window, we stepped softly, for fear of disturbing....