根据句子,写出划线词组的中文解释。 1. In those days,he used to give away a part of his income to help his friend. _______________ 2. Both sides argued with reason,and neither would give in. _______________ 3. If they are burned,they give off poisonous gases. _______________ 4. When they made ready to climb the next ridge,they found that their oxygen had given out. _______________ 5. Both the man and horse gave out after the long ride. _______________ 6. All hope of finding the missing aircraft was given up and the search stopped. _______________ 7. Mary had to give up her job after her marriage. _______________