ial 结尾的单词
trial,试验；
commercial,商业的；
confidential,自信的；
essential,必要的；
martial 军事的；
facial 面部；
influentia 影响
We plan to release a prototype this autumn for trial in hospitals.
我们计划今年秋天在各医院推出一个模型进行试验。
In a double-blind trial, there were definite improvements.
在双盲试验中，改善效果明显。
My letter is, of course, strictly private and confidential.
当然，我的信纯属私人信件，务须保密。
He spoke in a confidential tone, his voice low.
他低声用隐密的语气说话。