The nouns 优点 and 缺点
These nouns are used to talk about advantages and disadvantages.
The noun 优点
优点 
is used when talking about the positive aspects of something.
is used when talking about the positive aspects of something.Examples
他向我们宣扬资本主义的优点
He preaches the virtues of capitalism to us
tā xiàng wǒmen xuānyáng zīběn zhǔyì de yōudiǎn
解释一下自行车旅游的优点
Explain the advantages of bicycle touring
jiěshì yíxià zìxíngchē lǚyóu de yōudiǎn
公立大学也有一些优点，比如学费是免费的
Public universities also have some advantages, such as tuition being free
gōnglì dàxué yě yǒu yìxiē yōudiǎn, bǐrú xuéfèi shì miǎnfèi de
The noun 缺点
The antonym of 优点 is 缺点 is used when talking about the negative aspects of something.
is used when talking about the negative aspects of something.Examples
这个计划的优点远远超过了缺点
The advantages of this program far outweigh the disadvantages
zhè ge jìhuà de yōudiǎn yuǎnyuǎn chāoguò le quēdiǎn
这篇文章是关于网上购物的缺点
This article is about the disadvantages of shopping online
zhè piān wénzhāng shì guānyú wǎngshàng gòuwù de quēdiǎn
他这个人很好，但并非没有缺点
He's a nice guy, but not without flaws
tā zhè ge rén hěn hǎo, dàn bìngfēi méi yǒu quēdiǎn