strenuous (a) (effort) | duro (m) (a) (effort) |
strenuous (a) (effort) | difícil (a) (effort) |
strenuous (a) (effort) | laborioso (a) (effort) |
strenuous (a) (behavior) | fervoroso (a) (behavior) |
strenuous (a) (effort) | trabalhoso (a) (effort) |
strenuous (a) (effort) | pesado (a) (effort) |
strenuous (a) (effort) | árduo (a) (effort) |
strenuous (a) (behavior) | ativo (m) (a) (behavior) |