Just watch out for free trials that require a credit card.
注意需要信用卡的免费尝试。
Bill: It includes promotional events, consumer coupons and free trials.
包括宣传活动，发放顾客优惠券和免费试用。
Offering no-hassle free trials was sufficient to remove the commitment risk.
提供不麻烦简单免费的使用可高效消除承诺风险。
Rhapsody has tried the tactic before, offering two-week and 60-day free trials.
此前，Rhapsody也曾尝试过这种策略，向用户提供两周以及60天的免费试用期。
Free trials are available and subscription costs for commercial use are competitively low.
免费试用是可用的和订阅有竞争力的低成本商业用途。
Last week, for example, college professors at 200 universities were offered free trials of a new antiplagiarism software that more than 1, 000 Chinese science journals have been using since December.
例如，上周两百所大学的教授受邀免费试用了一个反剽窃的新软件，自从去年十二月份以来，该软件已经已经被用于超过一千家中文科学杂志。
Across 18 trials each, the living rats were 52 percent more likely on average to set the social robot free than the asocial one.
在每组18次试验中，平均而言，活着的老鼠释放社交机器人的可能性比非社交机器人高52%。
The stock market was in free fall and the publishing industry was going through a lot of trials and tribulations.
那时候，股市一落千丈，出版业正面临重重考验和磨难。
JumpBox, a vendor offering application's images running on many virtualization platforms, offers free one hour trials for their images running on Amazon's EC2 cloud.
JumpBox这家厂商旨于提供可以在许多虚拟平台上运行的应用程序镜像，现在人们可以在AmazonEC2云上对这些镜像进行一小时的免费试用。
Offer free or limited-use trials.
提供免费试用或者确定免费试用期。
This means disabling time trials, defeating registration, and basically everything else to get commercial software for free.
这意味着禁用软件试用，停用软件注册机制，基本上说就是让一切商业软件变为免费的。
For many years, after numerous trials, people find that the best fruit to eradicate the notorious free radicals is blueberry.
多年来，人们在探索对抗自由基的过程中进行了数不清的尝试。现在发现自然界中对抗自由基效果最好的就是蓝莓。
The creation of a payment profile for automatic billing is required on all free hosting trials.
一个自动帐单付款文件的创建需要所有免费托管审判。
Hepatology Digest: There are currently several trials involving interferon free regimes. Can you comment on this concept and what you think would be the outcome hypothetically.
《国际肝病》：目前有几个关于无干扰素治疗的试验，您能评价下这个概念和给出您的假设结果吗？
Hepatology Digest: There are currently several trials involving interferon free regimes. Can you comment on this concept and what you think would be the outcome hypothetically.
《国际肝病》：目前有几个关于无干扰素治疗的试验，您能评价下这个概念和给出您的假设结果吗？
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