难得

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。

Luckily, we have UC chat room, which is a very hard-won environment and a good way of communication.

幸运的是我们有了UC，这是一个非常难得的学习环境和一种好的交流方式。

He is rare and hard-won. How can I live without him?

他走了，他很稀罕，很难得，没有他，我怎么活啊？

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。。。

I hardly have any chance to see her.

我难得看到她。

I can hardy see her.

我难得看到她。

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。