Tīng dào tā de màoxiǎn jìhuà, wǒ bùjīn niē le yī bǎ hàn.
Hearing his risky plan, I couldn't help breaking into a nervous sweat.
Tips
history
Attested in 《红楼梦》 chapter 62: a character anxious about being found out 'each day clenched a fistful of sweat' (每日捏一把汗) waiting for news.
memory
Literally 'to pinch a handful of sweat' — you're gripping so hard with tension your palms go clammy. Often preceded by 替 ('for someone') or 为 ('because of').