敛色屏气liǎnsè-bǐngqì熟straighten one's face and hold one's breath―be very cautious;be dreadful/fearful
英汉汉英双解词典包含9999994条英汉翻译词条,涵盖了常用英语单词及词组短语的翻译及用法,是英语学习的必备工具。