subtle 微妙難捉摸的 - (especially of a change or distinction) so delicate or precise as to be difficult to analyze or describe.

subtle 微妙難捉摸的 - (especially of a change or distinction) so delicate or precise as to be difficult to analyze or describe.

But there is a subtle detail of how scope attachment works with declarations that appear in various locations within a scope, and that detail is what we will examine here.