The speaker had only a superficial knowledge of the subject.
这演说者对主题只有肤浅的知识。
The speaker kept skipping from one subject to another.
演讲者老是从一个题目跳到另一个题目。
He is also a regular speaker at technology conferences on the subject of phone fraud.
他还经常在科技大会上就电话欺诈主题发言。
The other speaker can change the subject to show that this is a taboo subject.
对方可能会改变话题，以表示这个话题是个禁忌。
I wish the speaker will confine himself to the subject.
我希望演讲者不要离题。
I wish the speaker would confine himself to the subject.
我希望演说者不要离题。
The speaker kept skipping from one subject to another.
演讲者总是从一个题目跳到另一个题目。
I with the speaker would confine himself to the subject.
我希望演说者不要离题。
The speaker talked a lot, but never really got to grips with the subject.
那位演讲者讲了许多，但始终没有真正抓住题目。
The speaker talked a lot but never really came to grips with the subject.
那位演说者讲了许多，但始终没有真正涉及主题。
The speaker quickly warmed to her subject.
演讲者立刻对她的题目产生兴趣。
The speaker quickly warmed to her subject.
演讲者立刻对她的题目产生兴趣。
应用推荐