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。

youdao

They are asked to serve for either one day or one trial.

他们被要求服务于任何一天或一审判。

youdao

Ebola's incubation period is ten days, and no one who had been vaccinated in either arm of the trial contracted the disease once that ten-day period was up.

埃博拉的潜伏期为十天，并且疫苗接种十天过后，接种过疫苗的两个实验组的人都没有感染埃博拉。

youdao

The 32-year-old Iranian-American journalist was tried and convicted on espionage charges in a one-day trial last month that was closed to the public.

CNN: U.S. journalist on hunger strike treated at prison hospital

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.

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