side issue

n.

与正题无关的问题，枝节问题；

复数：side issues

Mind-Body Identity, A Side Issue?
Mind—body identity, a side issue?
[Insulin--a side issue or indeed the cause of hypertension?]
A Side Issue in Volume calculation of the Surge Chamber for Slush Pumps
‘Europe’: A Side Issue in European Parliamentary Election Campaigns
Lateralisation may be a side issue for understanding language development
Grene on Mechanism and Reductionism: More Than Just a Side Issue
THERE'S THE BABY, BUT THAT IS A SIDE ISSUE : D. H. LAWRENCEにおける創造と生殖の乖離をめぐって
Attending to issues of access in contemporary times: centring a significant side issue
System and method for double-issue instructions using a dependency matrix and a side issue queue