DNA is made of four chemical bases, shown here by the four colours.
DNA 由四种化学碱基组成，此处用四种颜色表示。
| 单词 | four colour |
| 例句 |
原声例句
自然杂志：科技 DNA is made of four chemical bases, shown here by the four colours. DNA 由四种化学碱基组成，此处用四种颜色表示。 Engvid超级外教Rebecca - 语法 But if I showed you a card which had four colours, and now it's limited, right? 但是如果我给你看一张有四种颜色的卡片， 现在它是有限的， 对吧？ |
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