The discovery of the cowpox vaccination let the danger of vaccination more less, and cost lest.牛痘术的发明使种痘的危险性更小, 花费也降到最低,故而很快在全世界推广开来.In nineteen century, Enligh doctor Pearson came to Macao to spread the cowpox vaccinati...
Observing the prince take delight in Benedick's conversation, she called him " the prince's jester ".她注意到亲王很喜欢听培尼狄克的谈话, 就叫他作 “ 亲王的小丑. ”This sarcasm sank deeper into the mind of Benedick than all Beatrice had sa...