"a digressive allusion to the day of the week" "a tangential remark"
(of e.g. speech and writing) tending to depart from the main point or cover a wide range of subjects;
"amusingly digressive with satirical thrusts at women's fashions among other things" "a rambling discursive book" "his excursive remarks" "a rambling speech about this and that"
例句
Don't digress (from the subject) when lecturing. 讲课时不要岔开(主题).
I'll tell you a funny story, if I may digress for a moment. 如果我可以暂时离开一下话题,我将讲一个有趣的故事给你听。
The question caused the teacher to digress. 这问题使教师扯到别的地方去了。
Please allow me to digress for some time. 请允许我花点时间说些离题的话。
Don't digress too much;keep to the point. 别东拉西扯,还是言归正传吧。
We shall not digress into the history of methanics. 我们不去深考力学的历史。