Autoimmune disease
自身免疫病
🧩 词语组成解析
a. 自体/自身免疫的
🗣️ 情景例句
He knows all there is to know,
他无所不知，
Which one is heavier?
哪一个是较重的？
If they knew how difficult it was to drill through the hard rock, they would lose heart.
如果他们知道了钻透那坚硬的岩石有多么困难，他们会丧失信心的。