1、与
... be clever at擅长于 be combined with与.结合 be composed of由.组成 ...
2、结合
...adian study shows that after one year of training in music » 加拿大的研究显示，在音乐训练一年后 be combined with » 结合 the expense is too high » 费用是太高 ..
3、应结合
... tubeless » 无内胎 be combined with » 应结合 We can learn » 我们可以借鉴 ...
4、与结合
... be closely bound up with与...有密切联系 be combined with 使...与结合 be committed to 忠于某一立场；坚定的 ...