| A | B |
|---|
| adverse | harmful; unfavorable |
| compulsory | required by law |
| consecutive | following one after another in order |
| endurance | ability to put up with hardship |
| grueling | tiring; exhausting |
| participate | to take part in |
| aloof | remote or distant |
| alternative | allowing a choice between two or more things |
| canine | of, or relating to, dogs or related animals |
| desolate | deserted; lonely; without signs of life |
| dispatch | to send on specific business |
| distinction | recognition of the way things differ |
| fluctuate | to rise and fall; to keep changing |
| maul | to handle roughly so as to cause injury |
| robust | strong and vigorous |
