346. He was particularly eager—too eager, it would turn out—to explain all the intricacies of relativity to him.

译文　他特别迫切地——结果证明是太过于迫切地——希望能向对方解释相对论所有的复杂原理。

点睛　本句属于too...to...结构，破折号之间的部分作为一个插入成分，表示强调。turn out意为“结果是……”，通常后面会跟上to be.../to do...。而intricacy意为“错综复杂，难以理解”。relativity原意为“相对性，相关性”，此处意为“相对论”。

考点归纳　turn作动词时，相关短语还有：

turn in意为“归还；上交；就寝”。如：

You must turn in your homework tomorrow. 你们明天必须把作业交上来。

I think I'll turn in soon because I've got to get up early. 我得马上睡觉了，因为我得早起。

turn up意为“出现，到达；查（字典等）”。如：

He promised to come but hasn't turned up yet. 他答应来，但到现在都还没出现。

You may turn the word up in the dictionary. 你可以查查字典。

turn on意为“打开；依赖”。如：

Could you turn on the light, please? 你能把灯打开吗？

The success of a picnic usually turns on the weather. 成功的野餐有赖于天气情况。

turn off意为“关掉（煤气、水、电、收音机、电视机等）”。如：

Don't forget to turn off the light when you leave. 离开前别忘了关灯。

turn out意为“证明是，结果是；关掉”。如：

The experiment turned out to be a great success. 这次实验结果非常成功。

turn down意为“关小；拒绝”。如：

He tried to join the army but was turned down because of poor health. 他想入伍，结果因为身体不好被拒绝了。