对于所针对的单词，index- of返回单词在原来序列中的位置。

Given that word, index-of returns its position in the original sequence.

youdao

由于原来已经进行过的手术且由于肿瘤的位置在很深的脑中，普通外科手术无能为力。

Because of the prior surgeries, and the location of the tumor deep inside the brain, normal surgery was not an option.

youdao

这些孩子还是把他们的手保持在了原来的位置。

These children kept their hands just where they were.

youdao

这些孩子还是把他们的手保持在了原来的位置。

These children kept their hands just where they were.

youdao