1.commitment to 恪守承诺

The only guarantee that he won't is robb's commitment to marry frey's daughter.
弗瑞承诺可以不这么干，唯一的条件是罗伯答应与他的女儿结婚。

So the company increased its commitment to developmental assignments and invented new ones.
因此，公司增加了对发展性任务和新开发任务的投入。
2.combine to 结合

Proposals that the savings banks combine to start a commonly owned online bank have so far got nowhere.
然而联合所有储蓄银行开办一间国有的网上银行的提案至今仍被搁置。

The detector and arrays combine to make the icecube neutrino observatory.
探测器和阵列共同构成了冰立方天文台的主体部分。

3.wrap up 包裹；圆满完成

Make sure you wrap up in the cold wind.
冷风中，你一定要穿暖。

Please wrap up this sweater for me.
请为我把这件毛衣包起来。

4.manage to 达成，设法

The rest of europe may well manage to muddle through.
而欧洲其余国家也许能很好地设法渡过此难关。

Many people wonder why google didn't manage to build successful social services.
很多人不知道为什么google没能在社交网络领域取得成功。