by degrees (o) (development) | gradueel (o) (development) |
by degrees (o) (development) | trapsgewijs (o) (development) |
by degrees (o) (development) | stukje bij beetje (o) (development) |
by degrees (o) (development) | geleidelijk (o) (development) |
by degrees (o) (development) | stilaan (o) (development) |
by degrees (o) (development) | trapsgewijze (o) (development) |
by degrees (o) (development) | langzamerhand (o) (development) |
by degrees (o) (development) | progressief (o) (development) |
by degrees (o) (development) | gaandeweg (o) (development) |