turmoil ⇒ 战争风云 zhànzhēng fēngyún → the turmoil of war
人云亦云
parrot
九霄云外
far away ⇒ 他早把誓言抛到了九霄云外。 Tā zǎo bǎ shìyán pāodàole jiǔ xiāo yún wài. → He has long since forgotten his promise.
叱咤风云
all-powerful
烟消云散
vanish into thin air ⇒ 得知真实情况后，人们的不满情绪烟消云散了。 Dézhī zhēnshí qíngkuàng hòu, rénmen de bùmǎn qíngxù yān xiāo yún sàn le. → When they found out what was really going on, the people's feelings of discontent vanished into thin air.
翻云覆雨
shifty
行云流水
natural and unforced
过眼云烟
fleeting
风云人物
influential person ( pl people )
风起云涌
( 字 ) rising storm
天有不测风云
something unexpected can always happen ⇒ 天有不测风云,人有旦夕祸福。 Tiān yǒu bùcè fēngyún, rén yǒu dànxī huòfú. → Life is as unpredictable as the weather.