许多孩子，特别是年长一些的，曾听说过癌症，甚至知道某个人死于癌症。

Many children, especially older ones, have heard of cancer. They may know of someone who has died from cancer.

youdao

许多孩子，特别是年长一些的，曾听说过癌症，甚至知道某个人死于癌症。

Many children, especially older ones, have heard of cancer. They may know of someone who has died from cancer.

youdao