OBJECT: Focal tumors, a distinct subgroup of which is composed of brainstem gliomas, may have an indolent clinical course.是什么意思_OBJECT: Focal tumors, a distinct subgroup of which is composed of brainstem gliomas, may have an indolent clinical course.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句