1. sharpen vt.削尖; 使锐利
例句: A workman must sharpen his tools if he is to do his work well.
工欲善其事,必先利其器。
2. decided vt.决定; 决心; 解决
例句:A chance meeting decided my career.
偶然的会面决定了我的事业。
3. horrible adj.可怕的; 极不友好的; 极讨厌的
例句:He might suffer horrible cruelties.
他可能遇到可怕的残酷待遇。
4. increase vt.增加,增大
例句:He exhorted his workers to increase production.
他力劝自己的工人增加生产。