1.
an outgoing ship, tide
离岸的船、 退落的潮水
2.
To fall back from the flood stage.
（潮）退从大水状态退落下来
3.
ebb tide:The receding or outgoing tide; the period between high water and the succeeding low water.
落潮:退去或退落的潮水;高水位相继的低水位时期.
4.
The victory was losing its edge.
胜利的兴奋已经渐渐退落下去。
5.
gradual formation of new land, by recession of the sea or deposit of sediment.
由于沉积或海水退落而逐步形成新陆地的过程。
6.
The process of degenerating.
衰退堕落或退化过程
7.
The state of being degenerate.
退化堕落或退化的状态
8.
To undergo degeneration.
经历退化、衰退、堕落.
9.
Fight the tendency to quit while you're behind.
不怕落后，就怕退却。
10.
The community succession was on the comedown phase rapidly,and the evidence of degeneration was naked.
群落演替处于快速衰落阶段 ,退化迹象十分明显。
11.
"degenerative:Of, relating to, causing, or characterized by degeneration"
"堕落的,引起变性的,或有退化的特征的"
12.
The process or result of declining, especially a gradual deterioration.
衰退衰落，尤指逐渐恶化的过程或结果
13.
give way; give space
撤退;让步;投降;折;落;听..支配;被征服
14.
Rainfall Interception Capability of Canopy Layer and Water-holding Capability of Litter of the Plant Community in Returning Farmland to Forest Project in Datong County
大通退耕地植物群落植冠层截留性能和枯落物容水性能研究
15.
A cornor of his mind has retreated and become cold.
他内心的一个角落却已经打了退堂鼓，冷下来了。
16.
a,run-down `area,`town,`industry,`house
衰败的地区、衰落的城市、衰退的工业、破损的房子
17.
a run-down area, town, industry, house
衰败的地区、 衰落的城市、 衰退的工业、 破损的房子
18.
he exclaimed, retreating to the farther corner of his cell.
他喊了一声，退回到地窖最远的那个角落里。