2. tackle vt.着手处理
例句:It is better, on such hands, to tackle the side suit at once.
这样一手牌,最好应立即攻副牌。
3. increase vt.增加,增大,增多
例句:He exhorted his workers to increase production.
他力劝自己的工人增加生产。
4. donate vt.(尤指向慈善机构) 捐赠; (血) 献;
例句:As the patient's life hung in the balance, many comrades offered to donate blood.
病人安危未定, 许多同志自愿给他输血。
5. explain vt.讲解,解释
例句:He made up a story to explain why he was absent.
他编造了一个故事为他的缺席辩解。
6. upgrade vt.提升; 使(机器、计算机系统等)升级;
例句:Organizations may suddenly need to upgrade servers.
各单位可能突然会需要对服务器升级。