那些研究间日疟原虫的人有时候觉得他们的所关注的对象是无形的。

Those who study vivax sometimes feel that the object of their attention is invisible.

youdao

那些研究间日疟原虫的人有时候觉得他们的所关注的对象是无形的。

Those who study vivax sometimes feel that the object of their attention is invisible.

youdao