travel、tour、journey、trip有什么区别?（具体点儿）

1)travel 通常泛指“旅行”,词义广泛,可以指长期、短期的,不论何种目的,不论使用何种交通工具的旅行,尤指长途的海外旅行.在表示抽象意义的“旅行”时也要使用travel.travels用来表示“包括访问几个地方的一次长时间的旅行、国外旅行”,也用来表示“旅行笔记”.
①He is traveling in Africa.他在非洲旅行.
②He is fond of travel.他喜欢旅行.
③Travel is valuable because it gives us a knowledge of foreign peoples.
旅行很有价值,因为它使我们了解外国各民族的情况.
④He has just returned from his travels.他旅行刚回来.
⑤ He wrote a book about his travels.他写了本游记.
2)trip通常指短期的短程的旅行,尤指暂时到外地办理业务上的事情.
①Mother took me downtown on a shopping trip.母亲带我进城到商店逛了逛.
②We had a trip to the coast last Saturday.上周六我们到海边旅行去了.
③He went on a business trip yesterday.昨天他出差了.
3)tour的意思是“周游、巡视”,常带有根据一定的路线,事先预定了一些逗留地点,最后仍回到出发地.
①He is planning a tour of the world.他计划周游世界.
②He visited the countries on good-will tours.他对一些国家进行了友好访问.
4)journey 表示“旅行,旅程”,适用范围广,多指陆上旅行.不用于指距离很短的旅行.
①He is away on a journey.他出门旅行去了.
②It's a long journey from here to the city.从这儿到那个城市路途遥远.
③Wish you a good journey.祝你一路平安.
5)voyage多指“乘船作海上旅行”.
①we had a good voyage.我作了一次美妙的航行.
②He made a voyage to America.他航行去美国.
6)outing表示“出游,户外活动”.
①We went on an outing yesterday.昨天我们去远足.