probationary driving period暂准驾驶期
probationary placement period儿童试养期
A probationary period一段试用期;见习期
extended probationary period延长试用期
Probationary Period Contract试用期劳动合同
the probationary period试养期
First Year Probationary Period第一年为试用期
During The Probationary Period在试用期内