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1·Desserts can be substituted by a portion of fresh fruit.

甜点可以替换成一份新鲜水果。《柯林斯英汉双解大词典》

2·Give a portion of each day to recreation.

每天抽一部分时间用于娱乐。《新英汉大辞典》

3·A titanic impact could have stripped away a portion of its rocky mantle, leaving behind a metallic core whose density is out of proportion with the original ratio of rock to metal.

超大碰撞可能剥去了水星的一部分岩石地幔，留下了一个金属核心，其密度与原来的岩石与金属的比例相比大得不成比例。

4·You must accept a portion of the blame for this crisis.

你必须承担这次危机的一部分责任。《牛津词典》

5·The selling broker is then required to assign a portion of the commission to the buyer broker.

卖方经纪人则被要求分给买方经纪人一部分佣金。《柯林斯英汉双解大词典》

6·With this model, one image covers up a portion of the other.

在这个模型中，一个图像掩盖住另一个图像的一部分。

7·A portion of Tom's half of the cake was left; they divided and ate it.

汤姆那一半蛋糕还剩下一些，他们分了吃。

8·Almost half of graduates—those who go on to earn less—will have a portion of their debt written off.

几乎一半的毕业生后续挣的钱依然很少，他们会有一部分债务被免除。

9·Since African agriculture is still broadly unproductive, food is imported, consuming a portion of revenue.

由于非洲的农业仍然普遍缺乏生产力，所以粮食需要进口，消耗了一部分收入。

10·Radiocarbon dating of fossils taken from caves on islands along southeastern Alaska's coast suggest that at least a portion of the area was remaining ice-free during the last ice age.

从阿拉斯加东南海岸岛屿的洞穴中提取的化石的放射性碳年代测定法表明，在最后一个冰河时代，该地区至少有一部分保持无冰状态。