To find It'seemed rather a hopeless attempt in the stretch of rich grass before them.

It was like fishing for a needle in the ocean.

这就像是大海捞针.

The drought and crop failure were the most serious in North China a hundred years.

那几年,华北平原发生了百年不遇的大旱灾和歉收.

This is the biggest flood in a century.

这是百年不遇的大水灾.

To be a torch bearer is a rare honor.

成为一名火炬手,是百年不遇的荣耀.

How could you miss such a once-in-a -- moon chance?

你怎么能错过这个 千载难逢 的机会 呢 ?

This competition, to me, is a chance of lifetime.

对于我来说, 这次比赛是个千载难逢的机会.

For seven employees, the Johnstone's re-launch offered a fantastic opportunity.

约翰斯通再造品牌同时为七个公司雇员提供了千载难逢的好机会.

The opportunity was unique and not to be missed.

机会千载难逢,不能错过.

The air is heavy with the scent of osmanthus.

桂子飘香。

Attack the unprepared; do the unexpected.

攻其无备，出其不意。（《孙子》）

" art of deception", which means attacking suddenly while the enemy is not prepared, using adroit tactics, swift mobility, and deception to crush the enemy.

诡道攻其无备，出其不意，运用灵活的战术，快速机动和伪装欺敌来战胜敌人。

Research on electro-optical countermeasure technology and equipment in the operation application of anti-UAV Art of Deception, which means attacking suddenly while the enemy is not prepared, using adroit tactics, swift mobility, and deception to crush the enemy.

光电对抗技术及装备在反无人机作战中的对策探讨「诡道」攻其无备，出其不意，运用灵活的战术，快速机动和伪装欺敌来战胜敌人。

He is fishing in troubled waters.

他是在趁火打劫.

Daily Proverb : Never fish in troubled water.

不要混水摸鱼,趁机取利,趁火打劫.

Chance had played into his hands.

他有机可乘了.

As soon as I saw an opening I landed a blow on his head.

我一看到有机可乘,就给他头上一击.

" Dr. " Harkness saw an opportunity here.

哈克尼斯 " 博士 " 这时看到有机可乘.

Good—we have a let-out now.

好！我们现在有机可乘。

The Russians would move in.

俄国人就会乘虚而入.

The enemy got a chance to step in.

敌人乘虚而入.