Preliminary experimentations prove the rationality and practicability of this system .
初步试验表明了该系统的合理性与实用性。
I had some questionable experimentations that were done to me as a child that I absolutely remember .
我清楚地记得我小时候被做过一些可疑的试验。
Last year the vatican added seven new ones : genetic modification ; human experimentations : polluting the environment ; social injustice ; causing poverty ; " financial gluttony " ; and taking or selling drugs .