埋头伏案: secreting one's head and face falling on to the table; bent over the desk
操劳: 1.(辛苦劳动) work hard 短语和例子操劳过度 overwork [strain] oneself; work oneself too much; work beyond measure; 长年的操劳严重地影响了他的健康。 the strain in a long term of years has told severely on his health.2.(费
操劳过度: overwork oneselfwork oneself too muchwork beyond measure
日夜操劳: work indefatigably day and night; exert oneself day and night (for...); labour day and night; work round the clock for ..
