hamathecium

例句：

1. 1.The hamathecium was a fascinating discovery.
   这个哈马特西克是一个令人着迷的发现。
2. 2. The hamathecium is a rare species that requires special care.
   哈马特西克是一种稀有物种，需要特别的照顾。
3. 3. The hamathecium has been found in various parts of the world, including Antarctica.
   哈马特西克在世界的各个地方被发现，包括南极洲。