ne'er cast a clout till May be outWiktionary 原文英/nɛə ˌkɑːst‿ə ˈklaʊt tɪl ˌmeɪ biː ˈaʊt/美/nɛər ˌkæst‿ə ˈklaʊt tɪl ˌmeɪ bi ˈaʊt/词源说明Ne’er is a contraction of never, while clout is an archaic or dialectal word for a piece of clothing.释义谚语proverb1UK, dialectalDo not change from winter clothes to summer clothes until June, as there is often a sudden cold snap in May.