Preparatory injection
[医] 准备性注射, 致敏性注射
🧩 词语组成解析
preparatory
[pri'pærətəri]
adj. 预备的，准备的，筹备的;初步的;
adv. 在先前，作为准备;
n. <美>大学预科;<英>私立预科学校;
🗣️ 情景例句
How many stops will the train make on the way?
路上火车停几站？
Who is the guy over there?
那边那个人是谁？
Libraries made education possible, and education in its turn added to libraries: the growth of knowledge followed a kind of compound interest law, which was greatly enhanced by the invention of printing.
藏书使教育成为可能，而教育反过来又丰富了藏书，因为知识的增长遵循着一种“滚雪球”的规律。印刷术的发明又大大提高了知识增长的速度。