Well, it's difficult to define precisely what motivates me.
As with any genre, the borders are difficult to define.
I know our relationship has always been... difficult to define.
Mostly it's difficult to define how well the system is performing.
Groundwater systems can be complex and difficult to define.
Grundwassersysteme können komplex sein und schwer definierbar.
Despite an extensive body of literature on its meaning, property is difficult to define.
Eigentum bleibt schwer definierbar, trotz der umfangreichen Literatur über dessen Bedeutung.
Your sound signature has always been very unique but difficult to define.
Eure Sound-Signatur war schon immer sehr einzigartig, aber schwer zu definieren.
What I wish to speak about this day is difficult to define.
Worüber ich am heutigen Tag sprechen möchte, ist schwer zu definieren.
Incorporeal concepts, like justice and freedom, can be difficult to define.
Immaterielle Konzepte wie Gerechtigkeit und Freiheit können schwer zu definieren sein.
The photograph developed hazily, leaving their smiles soft and difficult to define.
Das Foto entwickelte sich verschwommen, ihre Lächeln waren weich und schwer zu definieren.
Spanish culture is very multifaceted and difficult to define...
Die spanische Kultur - universal und schwer zu definieren...
The actual beginning is difficult to define here.
Der Anfang ist auch hier schwierig zu definieren.
My life motto is very difficult to define.
Mein Lebensmotto ist sehr schwer zu definieren.