tankearbete (n) (n) (problem) | reflexión (f) (n) (problem) |
tankearbete (n) (n) (problem) | trabajo intelectual (m) (n) (problem) |
tankearbete (n) (n) (intelligens) | ejercicio mental (m) (n) (intelligens) |
tankearbete (n) (n) (intelligens) | preparación mental (f) (n) (intelligens) |