难得的

In more god-given off hours, what does he like to work?

在比较难得的业余时间里，他喜欢干些什么呢？

The broad scope and often orthogonal nature of these Pd-catalyzed halogenation reactions should make them a valuable synthetic tool for accessing a more diverse array of halogenated organic molecules.

正交性质和范围往往这些钯催化卤化合成反应应该是一个难得的工具存取更加各种卤化有机分子。

This is a hard-won chance in the life.

这是一生难得的机会。

It's a hard-won chance in life.

这是一生难得的机会。

This is a hard-won chance in one's life.

这是一生难得的机会。

This chance is hard-won of the life.

这是一生难得的机会。

This is a hard-won chance in whole life.

这是一生难得的机会。

IT'S A HARD-WON CHANCE IN YOUR LIFETIME.

这是一生难得的机会。

This is a hard-won chance all over the life.

这是一生难得的机会。

Olympic is a hard-won chance that all the countries could come together...

奥运会是一个难得的机会，让所有国家聚首一堂。。。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。