I like to be a professional singer， but I don‘t think I have a good enough voice.
我想当个职业歌唱家，但是我觉得我的嗓子不够好。
A day may begin well enough， but suddenly everything seems to get out of control.
一天的开端可能好得很，但突然一切似乎都失去了控制。
The currents of air that the walls of the ship direct upwards， as well as in line of its course are enough to give the great bird with its immense wings sufficent sustenance and progress.
沿着船壁向上引导的以及与航行方向一致的气流足以给这种长有特大翅膀的大鸟以充分的支撑力和前进力。
Our vicar is always raising money for one cause or another， but he has never managed to get enough money to have the church clock repaired.
我们的牧师老是为这事或那事筹募款项，但是从来也没能募集到足够把教堂大钟修复起来的钱。
The problem set for society is not the virtues of the type so much as its adequacy for its function， and here grave difficulties arise. He refuses to consider sufficiently the wants of the customer， who must buy， not the thing he desires but the thingthe English Gentleman wants to sell. He attends inadequately to technological development.
向社会提出的问题，与其说是这号人的德行问题，毋宁说是他们是否能胜任其职责的问题，于是便出现了严重的困难。他们不肯充分考虑顾客的需要， 顾客不得不买的不是自己想要买的东西，而是英国绅士所要卖的。他们对技术的发展并不给予充分的注意。
The majority of the patients attending the medical outpatients departments of our hospitals feel that they have not received adequate treatment unless they are able to carry home with them some tangible remedy in the shape of a bottle of medicine，abox of pills， or a small jar of ointment，…
在医院门诊部就医的大多数病人认为，如果他们不能带一些实实在在的药物，如一瓶药水、一盒药丸、一小瓶药膏回家的话，他们就没得到充分的治疗……
enough sufficient adequate
意思都含“充分的”、“足够的”。
enough 系常用词， 常可与 sufficient 互换， 它除表示“足以满足需要的”外， 还含有“数量很多使人感到心满意足的”的意思， 如：
We have enough money to spend.
我们有足够的钱花。
sufficient 用于正式文体中， 指“分量或数量足以满足需要的”， 如：
The food is sufficient for a week.
食物足够一周用。
adequate 指“足够符合特定（有时可指最低）的资格、分量、才能等”着重“符合一个客观要求或标准的”， 如：
To be healthy one must have an adequate diet.
一个人想要健康， 必须有足够的规定饮食。
advance promote progress proceed
都含有“前进”的意思。
advance 指“向某一目标或方向前进的运动或效果， 并常强调前进的终点”， 如：
Our soldiers advanced bravely against the enemy.
我们的士兵勇敢地向敌人挺进。
promote 作“提升”解时可与advance 通用； 它强调“促使某种事业向前发展以达到预期的结果， 并侧重于对该人或事物（尤指公开性质）的赞助和鼓励”， 如：
John was promoted [advanced] from a clerk to a manager.
约翰由职员晋升为经理。
A sound forest economy promotes the prosperity of agriculture and rural life.liuxuepaper.com