这句英文句子有何语法错误.

问题描述:

这句英文句子有何语法错误.
或者是哪个词语用错?请给出正解 .谢谢
the experim he devoted his energy to succeeding at last

succeeding→scceeded
不然句子缺少谓语
which he devoted his energy to 作theexperiment的定语,定语从句省略了which