跟踪：指通过嗅觉追踪某物的气味。
闻着臭味追猎：指动物通过嗅觉追踪并追捕猎物。
... a scent of trouble出现麻烦的迹象 follow up the scent跟踪 be on a false scent追踪的线索不对 ...
... follow up the scent闻着臭迹追赶 get〔take〕 the scent闻出臭迹,找到线索 give a false scent给假线索 ...
跟踪；闻着臭味追猎
Follow-up questions confirmed that participants did not notice the scent in the room and that their mood at the time of the experiment did not affect the outcomes.
跟进的提问确认，没有注意到房间气味的受试者，在试验期间他们的情绪没有影响到实验结果。