2. purpose n. 目的; 意图
例句：He returned to his homeland with the purpose of serving his own people.
他返回祖国, 意在为祖国人民服务。
3. seek vt. 寻找;探索;追求
例句：They were seeking employment.
他们在找工作。
4. yield n. 产量, 收益
例句：The yields on his shares have increased in this year.
今
