calling crab

• 招潮蟹

calling crab的用法和样例：

例句

1. Even without daylight the crab's skin colour continued to change exactly on time.
   即使没有阳光，招潮蟹的皮肤仍可以变换颜色。
2. But when an enterprising scientist placed a fiddler crab in darkness,he was amazed to find that the color of the crab's shell kept ticking off the time with the same accuracy.
   但是，当一个勇于探索的科学家把招潮蟹放在黑暗中，他惊讶的发现蟹壳的颜色依然准确的按时间转变。