?与

... be clever at擅长于 be combined with与.结合 be composed of由.组成 ...

?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 ..

?应结合

... tubeless ? 无内胎 be combined with ? 应结合 We can learn ? 我们可以借鉴 ...

?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 ...