名词
中文翻译：后半圆管
同义词：
['posterior canal', 'posterior tube例句：1. The posterior canal was filled with water.（后半圆管里充满了水。）']
例句：
-
1. The posterior canal was filled with water.
后半圆管里充满了水。
-
2. The posterior canal is responsible for the drainage of wastewater.
后半圆管负责排放废水。
-
3.The posterior canal was blocked by a tree root.
后半圆管被一棵树的根堵住了。