Question

i go on a tangent to sometiems什么意思?

Answer 1

虽然字典里面只有go off at a tangent=to change suddenly from one course of speech,thought,or action to another,突然改变话题、思路、或行动

但可以根据on和off的反义关系猜出,I go on a tangent to sometiems是我有时切题、坚定思路与行动的意思