- 1. 同年，中朝正式签署了易货合同。
- A barter contract between China and the DPRK was officially signed the same year.
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- 2. 你能知道马什么时候正在利用双目视觉，因为它通常会警觉站立，两耳集中朝向面前的一个物体。
- You will know when a horse is using binocular vision because he will usually stand alert, with both of his ears focused on an object in front of him.
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- 3. 你能知道马什么时候正在利用双目视觉，因为它通常会警觉站立，两耳集中朝向面前的一个物体。
- You will know when a horse is using binocular vision because he will usually stand alert, with both of his ears focused on an object in front of him.
来自互联网
