?即将来临

... curl one's hair：令人惊诧，令人惊恐 a hair's breadth 即将来临；千钧一发 a hair to make a tether of 小题大做的借口（尤指借他人偶尔失言等故兴起的轩然大波） ...

?千钧一发

... curl one's hair：令人惊诧，令人惊恐 a hair's breadth 即将来临；千钧一发 a hair to make a tether of 小题大做的借口（尤指借他人偶尔失言等故兴起的轩然大波） ...

?以细微之差

... keep your hair on 保持冷静，别生气 a hair's breadth 以细微之差 let your hair down 尽情地玩，放松下来 ...