前功尽弃

Their doctrines simply does not reflect the requirements of advance airpower.

飞机发动机的问题困扰中国空军多年，多年来，不管有多宏伟的计划，最后总是受困于动力问题而前功尽弃。

Oh, my God! All my efforts, have gone down the drain .

噢，天啊，我的努力已是前功尽弃了。

Free, the effect of short time is not apparent, if search engine to change algorithm, the effort before you meets the likelihood all one's previous efforts wasted, this is a need long the job that unremitting tries hard, conscientious SEOer just is the most outstanding, believe a word sword sharp edge goes out from go through the mill, be engaged in SEO needing patience, attentive and hard-working.

免费的，短时间的效果不明显，如果搜索引擎改变算法的话，可能你之前的努力就会前功尽弃，这是一项需要长时间坚持不懈努力的工作，勤勤恳恳的SEOer才是最优秀的，相信一句话宝剑锋从磨砺出，从事SEO需要耐心，细心和吃苦耐劳。

All our previous efforts were wasted because of his imprudence .

他的轻率使我们前功尽弃。

But also to fight the requirements are very strict, a little misspelling in one place could come to naught.

而且对拼的要求很严，稍稍拼错一个地方都会前功尽弃。

Not to mention books are double-sided printing, if a paper jam, order your labour completelyderanged cichliden.

更不用说书籍都是双面打印，一旦卡纸，次序搞乱了就前功尽弃。

If you really want to weaning, then, it is necessary to resolve, but you should never for being soft-hearted, so would jeopardize the.

如果你真的想断奶的话，就要下决心，千万别心软，这样的话就会前功尽弃的。

Do not give up, a softie on the wasted!

不要放弃，一心软就前功尽弃了！

Life is not a spelling bee, where no matter how many words you've gotten right.

人生也不是一场拼字游戏比赛。不管你拼出多少单词，一旦出现了一个错误，你便前功尽弃。

Life is not a spelling bee, no matter how many words you've gotten right, you're disqualified if you make one mistake.

人生也不是一场拼字游戏比赛。不管你拼出多少单词，一旦出现了一个错误，你便前功尽弃。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。