1.
The Cause and Countermeasure of Soil Degradation and Yield Reduction of Artificial Fir Plantation
杉木林地力衰退与产量下降的原因及对策
2.
Studies on Soil Degradation and Soil Productivity Maintenance Measures for Continuous Cropping Poplar Trees;
杨树连作地力衰退及林地生产力维持技术的研究
3.
His influence is on the ebb.
他的影响力逐渐在衰退。
4.
His powers are failing, ie He is becoming weak.
他的体力正在衰退.
5.
His judgment seems to have waned.
他的判断力似乎衰退了。
6.
His influence [popularity] has waned.
他的势力 [声望] 已衰退。
7.
His sight is beginning to fail.
他的视力开始衰退。
8.
His eyesight is failing.
他的视力渐渐衰退了.
9.
His eyesight is going.
他的视力正在衰退。
10.
second childhood
老年的智力衰退时期
11.
His mental decay is distressing.
他的智力衰退令人苦恼。
12.
Study on the decline process and instauration path of land productivity on the sloping land in the Southern Loess Plateau;
黄土高原南部坡地土地生产力衰退过程和恢复途径研究
13.
To decline in health or vigor;waste away.
衰弱，消瘦在健康或精力方面衰退；变得衰弱
14.
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
15.
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
16.
The Evaluation of the Core Competitive Capacity of Enterprises and the Transfer of the Failing Mine to the West Energy Concentrative Place;
核心竞争力评价与衰退矿区向西部能源富集地转移
17.
Analysis on the Impetus to the Decline and Rejuvenation of Tourist Areas;
旅游地衰退与复苏的驱动力分析——以几个典型旅游景区为例
18.
As people grow old, they will decay mentally as well as physically.
人们年老时脑力和体力都会衰退。