名词
中文翻译：水沟
同义词：
['notch', 'groove', 'indentation']
例句：
-
1.The weir notch is a crucial part of the river's ecosystem.
水沟是河流生态系统中至关重要的一部分。
-
2. The engineer carefully measured the notch to ensure it was level.
工程师仔细测量了凹槽以确保它水平。
-
3.The old car has several notches that can be used for different purposes.
这辆旧车有几个可以用于不同目的的凹槽。