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- I've been hard at it all the morning. 我一上午都在卖力地干。
- The squire was hard at work at Bristol. 乡绅在布里斯托尔热衷于他的工作。
- Times were hard at the end of the war. 战争后期生活很艰苦。
- Some are hard at work and some are slack in work. 有的勤奋工作, 有的则消极怠工。
- The teacher was hard at work correcting his students'homework. 老师正忙于批改学生的家庭作业。
- We heard the story form his own lips of how he had been hard at his design. 我们听他亲口谈到他是如何下功夫搞他的设计的。
- He's been hard at it for several months now,and nothing we do can restrain him. 他酗酒已好几个月，我们怎么也制止不了他。
- Mr George has been hard at work on his typewriter all night,banging out a report. 乔治先生整夜都在忙着，用打字机打一份报告。
- Mr George has been hard at work on his typewriter all night, banging out a report. 乔治先生整夜都在忙着，用打字机打一份报告。
- I was hard at work on a term paper when my baby sister bounded up the stairs and burst into my room. 我正在认真的写学期论文的时候,我的小妹妹连蹦带跳得上了楼,冲进我的房间。
- I was hard at work on my term paper when my little sister bounded upstairs and burst into my room. 我正在认真地写学期论文的时候,我的小妹妹连蹦带跳地上了楼,冲进我的房间。
- If the ink sinks in it'll be hard to remove it. 如果墨水渗入，要除去就很困难。
- While I was hard at work on foreign affairs, the new world of Whitewater was beginning to take shape at home. 正当我忙于从事外交事务时，在国内，有关白水事件的新一轮调查开始了。
- It will be hard on her when the children leave. 孩子们离去时，她会感到难受的。
- I scrubbed hard at the stain to see if I could get it off. 我使劲擦这个污迹，看能不能将它去掉。
- If the ink sinks in, it'll be hard to remove the spot from the cloth. 如果墨水渗入布料，就很难把污迹洗去。
- Through a set of double doors behind www.cancer.gov the dog clothes tes and trainers alike are hard at work ensuring the success of COS athletics. 紧张的工作节奏和激烈的社会竞争使男性常处于极大的心理压力之中，同时，他的'性'趣也会受到压抑，甚至对自己失去信心。
- The northeast wind was blowing hard at that time. 那时候东北风刮得正紧。
- And,although scientists at Livermore and elsewhere were hard at work at it,so far as I know we have never developed a true "neutron bomb",that is,a "zero-fission fusion" weapon. 尽管Livermore还有其它一些机构的科学家们在这方面已经进行了大量研究工作，但就我所知，现在我们仍没有开发出真正的“中子弹”，即一种“完全的核分裂聚变”武器。
- I gazed thoughtfully at the field behind the litchi groves where commune members were hard at work. With their labour they were building themselves a new life. 透过荔枝树林，我沉吟地望着远远的田野，那儿正有农民立在水田里，辛辛勤勤地分秧插秧。
