one-time trial

常见例句

One idea to seriously avoid: giving users say, a 30-day limited-time free trial.
其中之一要杜绝的是这样的点子：用户可免费试用本产品30天。
The case going to trial is the only one of many compiled against him, mostly dating from his time as mayor of Paris in 1977-95, not to be dropped.
这次被审判的案子只是他遭受到的众多指控当中的一个，其中的大多数都要追溯到1977-1995年他担任巴黎市长的那段时期，这些不能忽略。
In one 300-patient trial, PFMT with no biofeedback significantly reduced the time to recovery of continence compared with no training, the authors report.
一个300人的试验表明，与不进行练习相比，非生物反馈性骨盆底肌肉练习可显著缩短尿失禁的治愈时间。

This week, a federal judge in Texas delayed the trial of one-time Forbes 400 billionaire Allen Stanford, who is charged with running a multi-billion dollar Ponzi scheme.
FORBES: Jailed Billionaire Stanford: Drug Addicted, Delirious, Possibly Brain Damaged
Bearing in mind that this is the same no-nonsense judge who, last Monday, picked a jury in one day for the most important corporate-fraud trial of all time, frequent interruptions are a mistake.
FORBES: Magazine Article
Likely this is not just a one-time, start-to-finish exercise, but an iterative process of trial and error.
FORBES: Are You Making Something Usable? Part 5 -- What to ask?