过眼云烟

guòyǎnyúnyān

过眼云烟 — guòyǎnyúnyān

1. ephemeral; fleeting; transitory (lit. 'smoke passing before the eyes')

   生活中的很多烦恼不过是过眼云烟。 shēnghuó zhōng de hěnduō fánnǎo bùguò shì guòyǎnyúnyān — Many of the worries in life are nothing but fleeting clouds of smoke.