1.I can do something for twelve hours that would appall me if I felt that I had to keep it up for a lifetime.
我可以花12小时去做某件事，但如果我觉得要持续一生去做的话，我一定会心惊胆战。
2.The first two or three days of a slimming diet are not difficult, but then I always find it hard to keep it up.
开始二三天的减肥饮食并不困难，不过我总发现难以坚持下去。
3.Debt repayment is a long, slow process and without some sort of inspiration it can be very hard to keep it up over the long haul.
债务偿还是个漫长而缓慢的过程，没有动力的激发，很难在长时间内坚持下来。
4.Automating your documentation's generation will help you keep it up to date and thereby make it more useful for your software's users.
自动化生成文档便可以解决这两个问题，它可以保持文档的时效性，从而使它对您的软件用户更加有用。
5.You might encourage her to keep it up and not to let those angry people bring her down.
也许你会鼓励她坚持这样做，不要让那些不礼貌的人打消了她的积极性。
6.Haven't I brought you up to be respectable? And how can you keep it up without my money and my influence and Lizzie's friends?
要是没有我的钱、没有我的支持、没有利慈的朋友帮忙，你这上等人的身份怎么保得住？
7.Like I said, if you're okay with all that, keep it up.
我说过的，如果这些你都ok，那就继续保持下去。
8.One of the biggest reasons people drop an exercise program is lack of interest: If what you're doing isn't fun, it's hard to keep it up.
人们对锻炼半途而废的重要原因之一就是缺乏兴趣：你所从事的事情索然无味，是难以坚持的。
9.So far, I haven't said anything more about it, but it has taken superhuman self-control, and I don't know whether I can keep it up.
到目前为止，我对此事只字未提，但这可需要超人般的自控能力，我不知道能不能坚持。
10.The IRA would keep it up for more than a year, at great cost to themselves.
爱尔兰共和军的行动将持续了一年多，对他们自己来说代价惨痛。