Prophylaxis
n. 预防\\n[医] 预防
📖 牛津释义
prophylaxis
n[U]
(fml 文) preventive treatment against disease, etc （疾病等的）预防.
🗣️ 情景例句
They rescheduled the product launch.
他们重定产品投放市场的时间表。
There is no rose without a thorn.
玫瑰花没有不长刺的。
Even more processes are never patented at all but kept as secret processes.
更多的工艺过程根本就不会取得专利权，而是作为秘方保存着。