1. I used a clamshell to scoop up some sand at the beach.
我用贝壳来铲起一些沙子在海滩上。

2. The clamshell snapped shut when I touched it.
当我碰触它时，贝壳合上了。

3. The clamshell design of the phone allows for easy opening and closing.
手机的贝壳设计使得打开和关闭很容易。

4. The clamshell packaging was difficult to open.
这个贝壳包装很难打开。

5. I found a beautiful clamshell on the shore during my walk.
在散步的时候，我在海岸边发现了一个漂亮的贝壳。

6. The clamshell necklace she was wearing was a souvenir from her trip to the beach.
她戴着的贝壳项链是她去海滩旅行时的纪念品。