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一次牵引
1、tow───v.拖；牵引；拽；n.(Tow)（美、新加坡、马来西亚）道（人名）；n.拖；麻的粗纤维；拖具
2、tow as one───合二为一
3、tow truck───n.拖车；牵引车
4、tow times───两次
5、tow away───拖走；用另一车牵引
6、dinging tow───丁字拖
7、in tow───拖着；在一起；被拖; 跟在后面，紧随其后
8、tow morning───早上好
9、tow package───拖车包
1、Gause performed numerous tow-species experiments in the laboratory, in which one of the species became extinct when only a single kind of resource was available.───高斯在实验室里进行了许多双物种实验，其中一个物种在只有一种单一资源的情况下就灭绝了。
2、Funny notion of defying the fates — to take a woman in tow, comments one observer.───一位评论说的 “ 拒绝命运安排的可笑主张 — 拖上一个女人 ” 。
3、Russian biologist G. F. Gause performed numerous tow-species experiments in the laboratory, in which one of the species became extinct when only a single kind of resource was available.───俄罗斯生物学家 G. F. Gause 在试验室进行了大量的两个物种的实验，试验中，当只有单一的资源时，其中一个物种将会灭绝。