ebb
Word family adjectiveebblessnounebb
ebb1 /eb/ noun 2 be at a low ebb LEASTto be in a bad state or condition 处于低潮;处于衰退状态 His confidence is at a low ebb. 他的信心很低落。
3 ebb and flow CHANGE FROM ONE THING TO ANOTHERa situation or state in which something increases and decreases in a kind of pattern 〔有规律的〕涨落,起伏 the ebb and flow of the conversation 时高时低的谈话声
the ebb and flow of passengers in the station 车站里时多时少的客流
ebb2 verb [intransitiveI] 1. HEOif the tide ebbs, it flows away from the shore 〔潮水〕落,退 2 (also ebb away)REDUCE to gradually decrease 衰退;逐渐减少 Linda’s enthusiasm began to ebb away. 琳达的热情开始减退。
Origin ebb1 Old English ebba