The audience gets the drift of the conversation, and senses a forbidden subject.
观众开始理解会话的含义，并察觉到某个被禁止的话题。
2
Whether speciation is achieved normally via genetic drift or natural selection is the subject of much ongoing discussion.
究竟正常的物种形成是通过遗传漂变还是通过自然选择达到的，是现在正在进行热烈讨论的话题。
3
In addition, the data may also be subject to interference, drift and measurement of the environmental impacts, so that the measured real-time data are not accurate ones.