请根据所学的翻译技巧,翻译下列句子。 1. The earth on which we live is shaped a ball. 2. The doctor did his best to cure the sick and the wounded. 3. The lack of any special excretory system is explained in a similar way. 4. When he catches a glimpse of a potential antagonist, his instinct is to win him over with charm and humor. 5. It is no use employing radar to detect objects in water. 6. The sun affects tremendously both the mind and body of a man. 7. The remembrance of these will add zest to his life. 8. Talking with his son, the old man was the forgiver of the young man's past wrong doings. 9. A solar cell is reproductive by itself under any circumstances. 10. They did their best to help the sick and the wounded.