Seasonal affective disorder, also known as seasonal depression, causes depressive symptoms during only certain times of the year... and there's a pattern to it?!
It is difficult to distinguish the two,
Das ist von außen
schwer zu unterscheiden.
Cuesta diferenciarlas,
Cuesta diferenciarlas,
Il est difficile
de les différencier,
È difficile distinguere fra le due,
É difícil distinguir os dois,