trial lesson

基本解释

We do appreciate your interest in our free trial lesson.
感谢您对我们的免费体验课程的兴趣。
"A father came up to me after a trial lesson and said his child was quitting, " he recalled. "I asked why, and he complained: 'The coach was speaking Chinese.
他回忆说，“一位父亲在试听了一节课后过来跟我说他的孩子不学了，我问他为什么，他说因为外国老师讲的是中文。”
blog.sina.com.cn
After having a foreign teacher's free trial lesson in Westbourn Academic Training School, I felt it's good and I registered.
在维思特博英语学院听了老外的试听课后觉得还不错就报名了。
www.wbourne.com.cn

So the Eliquis result might be in some ways a lesson in clinical trial design and marketing.
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Still, the most important lesson from the trial may be that it is incredibly difficult to tease out the long-term effects of a medicine.
FORBES: Wyeth Lucks Out On Hormone Study
If there is a lesson to be learned from the trial of Martha Stewart Martha Stewart , it may be this: If you must engage in conspiracy, do it with people in your own tax bracket.
FORBES: Martha Trial: 'Everyone Is Telling The Same Story'