沟: 名词1.(挖掘的水道或工事) channel; ditch; gutter; trench 短语和例子交通沟 communication trench; 排水沟 drainage ditch; drain; 阴沟 drain; sewer; 挖一道沟 dig a ditch; 沟里的水不很清洁。 the water in the ditch is not very clea
Example Sentences:
1.
There are usually no dorsal pores in the first few intersegmental grooves . 身体前几个节间沟内经常无背孔。