Tetanolysin
破伤风菌溶血素
🗣️ 情景例句
Mr. Nelson.
Nelson先生。
He who would climb the ladder must begin at the bottom.
爬梯必须从底层开始。
In his youth, his father and grandfather often told him stories about their family history.
年轻时，他的父亲和祖父常常同他说起他们的家史。