Beginning in 1971 and continuing today, Major League Baseball's drug policy has prohibited the use of any prescription medication without a valid prescription.
从1971年开始直到今日，如果没有正式的医师处方签，大联盟的药物政策就已经禁止使用任何处方药物。
2
Recall from the use-case story at the beginningof this article that the Prescription application also sent a message to an in-house radiology department.
回想在一下本文开头的用例中，Prescription 应用程序还向内部放射科发送消息。
3
There are different views in academic circle about how to ascertain the beginning for calculating the prescription period of Anspruch of unascertained deadline for performance.