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- Here is an academic, but also policy-relevant, question. Which model is more useful in thinking through issues in trade policy: the Ricardian model or the Heckscher-Ohlin model? 有一个学术问题，也与政策有关。考虑贸易政策时，哪一个模型更有用：李嘉图模型还是赫克谢尔-俄林模型（下称H-O模型）？
- This Malthusian and Ricardian model of growth and its limits led Carlyle to characterize economics as the "dismal science." 这个马尔萨斯和李嘉图增长模型及其局限性使得卡莱尔把经济学标为“悲观的科学”。
- Standing by him was a model worker. 站在他旁的是一位劳动模范。
- I think I can get that special model for you. 我想我可以为你找到那种特别的型号。
- She has been held up as a model worker. 她被推举为模范工作者。
- He showed us a model of the new office building. 他给我们看了新办公楼的模型。
- He taught Tom how to make a model airplane. 他教汤姆作模型飞机的方法。
- John is repairing his model plane at his leisure. 约翰不慌不忙地修理着他的航模。
- The old sailor chipped out a tiny model boat. 那名老水手一点儿一点儿地削出一个小船模型。
- The luxury model gives a smoother ride. 坐这种豪华型汽车感觉很平稳。
- That beautiful girl is a fashion model. 那位漂亮的女孩是一位时装模特儿。
- The new model delivers speed and fuel economy. 这种新型设计能提高速度、 节约燃料。
- He assembled the model aircraft bit by bit. 他一块一块地装配飞机模型。
- He traded in his car for a new model. 他把旧汽车折价添钱买了辆新型号的。
- This model scrolls far too slowly. 这种型号的计算机文本上下移动得实在太慢。
- The model plane got out of control and crashed. 模型飞机失控坠落下来。
- This washing machine is the latest model. 这种洗衣机是最新型产品。
- He lost one of the pieces of his model engine. 他的火车头模型缺了一个零件。
- The new model come in an exciting range of colour. 这种新式样有各种鲜艳的颜色。
- He was a famous model worker in his day. 当年，他是一位著名的劳动模范。
