德前总理施罗德苦学英语: former german chancellor improving english in wales
苦干: bang away at; be [keep] at it; work hard 短语和例子苦干加巧干 work hard and skillfully; work hard and use one's brain; combine hard work with ingenuity; 我钦佩他们的苦干精神。 i admire their hard-working spiri
大干苦干: work with might and main; work hard and perseveringly