在英美国家，"Tentative"和"For Trial"这两个词汇都可以用来表示试行或试用的意思，但在不同的情境下可能会有一些差别。

Tentative: Tentative refers to something that is provisional, not final, or subject to change. It implies that a decision, plan, or arrangement is not yet firm or conclusive and may be modified or adjusted in the future. Tentative actions are often taken with caution and flexibility, allowing for adjustments based on evolving circumstances or additional information. It indicates a preliminary or initial state, suggesting that further confirmation or refinement is necessary.

"Tentative"通常用于描述一项计划或协议的初步或暂定版本，尚未最终确定或批准。例如，在一份协议或协议草案中，可以使用"Tentative"来表示这是一份暂定版本，需要进一步讨论和修改。

"For trial" specifically refers to a period or process during which something is tested, evaluated, or experimented with. It indicates that a particular action, concept, or product is being assessed or examined in a trial or experimental context. "For trial" implies that the purpose is to gather data, assess performance, identify strengths and weaknesses, and make informed decisions based on the trial results. It suggests a focused and intentional effort to evaluate something before making a final determination.

"For Trial"通常用于描述一项产品、服务或程序的试用期，以便客户或用户可以在实际使用前测试其效果。例如，软件公司可能会向客户提供一个"For Trial"版本的软件，以便客户在购买前测试其功能和可靠性。

除了这两个词汇之外，还有一些其他的词汇可以用于描述试行或试用，例如"pilot"、"beta"、"experimental"等等

双语例句：

The Board is of the view that the Group’s co-investment in, and the global distribution of, “Taiwan Crime Stories” (tentative title) are in line with our 5-Years Corporate Strategy in strategic content investment, and will solidify the Group’s edge in bringing the best content to its customers. Airing the TV series on an international platform globally would help to catch the attention from the audience all over the world.

董事会认为，本集团参与《台湾犯罪故事》（暂名）的共同投资及全球发行在战略内容联合投资方面符合本集团的5年企业战略，并将巩固本集团为客户带来最佳内容的优势。剧集透过国际平台全球播放有助引来世界各地观众的目光与共鸣。

Pursuant to the Circular on Release of the Technical Guidelines for R&D and Evaluation of Biosimilars (For Trial Implementation), the Company conducted a head-to-head comparison between HLX13 and Ipilimumab, an originator drug, in terms of their respective pre-clinical pharmacology, pharmacokinetics and toxicology.

根据《生物类似药研发与评价技术指导原则（试行）》，本公司对HLX13与原研药Ipilimumab从临床前药理学、药代动力学和毒理学三方面进行了头对头比较。