(organic chemistry) cyclooctadecane

cloche (women's hat)

plastic bag

Used other than figuratively or idiomatically: see 轆轤, 回す. / (figuratively) to make a similar pose with both hands, used when explaining something during a speech or similar event

“a hundred days of sermonizing, one fart” → a metaphor for how something that one has put great effort into can come to nothing after even a slight mistake, much as a hundred days of serious spiritual study can be lost to the winds

(idiomatic) "a fish who's found water" → In one's element, a duck to water.

absorbing (knowledge) very quickly and naturally

a European water vole (Arvicola amphibius)

Kyūjitai form of 水蒸気: steam; water vapor

impermeable wall