乐观的英文：
optimistic
hopeful
be positive
- groundless optimism.
毫无根据的乐观 - A sanguine disposition
乐观[快活]的天性 - The best physicians are Dr. Diet, Dr. Quiet and Dr. Optimistic.
节食、恬静、乐观是最好的医生。 - Look on the sunny side of everything
对每件事都抱乐观态度 - I'm sanguine of success.
我对成功抱乐观态度。 - All year she has fluctuated between optimism and despair.
全年当中她时而乐观，时而消沉。 - "a cheerful person, to all appearances."
就表面迹象而论,是一个乐观的人 - He has a sanguine attitude to life.
他对於人生有乐观的看法。 - I then made some groundless remarks, assessing the situation over-optimistically
然后，我毫无依据地对形势作出了过于乐观的分析。 - I really admire her indomitable optimism and can-do spirit.
我实在佩服她不屈不挠的乐观态度和苦干的精神。
adj. 乐观的，乐观主义的
- You have to be an optimist to be an inventor or entrepreneur.
要成为一位发明家或企业家，你必须得是个乐天派。 - The timetable was hopelessly optimistic.
时间表制定得过于乐观。 - An optimist sees the rose; a pessimist the thorn
〞乐观的人看到玫瑰,悲观的人只看到它的刺〞
adj. 有希望的；有前途的
n. 有成功希望的人
- Hope is the root of hopeful.
hope是hopeful的词根。 - This is a hopeful sign.
这是一个乐观的信号。 - We are hoping against hope for a change in her condition.
我们希望她的病情有一丝转机。
n. 正数；正面；阳极；实在的事物
adj. 确定的；积极的；完全的；原级的；正的；阳性的
- Moon is a positive.
月球是个实在的事物。 - It is the positive of the battery.
这是电池的阳极 - accessible position
可到达的位置